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                    语言的主要特性与发展的环境和影响因素
            
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                    第2章：安装与运行环境
            
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                    在 Linux 上安装 Go
            
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                    在 Windows 上安装 Go
            
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                    编辑器、集成开发环境与其它工具
            
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                    Go 开发环境的基本要求
            
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                    Go 性能说明
            
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                    与其它语言进行交互
            
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                    第二部分：语言的核心结构与技术
            
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                    第4章：基本结构和基本数据类型
            
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                    文件名、关键字与标识符
            
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                    Go 程序的基本结构和要素
            
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                    常量
            
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                    变量
            
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                    基本类型和运算符
            
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                    字符串
            
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                    strings 和 strconv 包
            
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                    时间和日期
            
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                    指针
            
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                    控制结构
            
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                    if-else 结构
            
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                    测试多返回值函数的错误
            
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                    switch 结构
            
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                    for 结构
            
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                    Break 与 continue
            
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                    标签与 goto
            
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                    函数（function）
            
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                    介绍
            
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                    函数参数与返回值
            
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                    传递变长参数
            
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                    defer 和追踪
            
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                    内置函数
            
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                    递归函数
            
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                    将函数作为参数
            
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                    闭包
            
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                    应用闭包：将函数作为返回值
            
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                    使用闭包调试
            
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                    计算函数执行时间
            
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                    通过内存缓存来提升性能
            
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                    数组与切片
            
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                    声明和初始化
            
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                    切片
            
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                    For-range 结构
            
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                    切片重组（reslice）
            
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                    切片的复制与追加
            
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                    字符串、数组和切片的应用
            
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                    Map
            
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                    声明、初始化和 make
            
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                    测试键值对是否存在及删除元素
            
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                    for-range 的配套用法
            
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                    map 类型的切片
            
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                    map 的排序
            
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                    将 map 的键值对调
            
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<li class="chapter " data-level="1.2.3.6" data-path="../the-way-to-go/eBook/09.0.html">
  
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                    包（package）
            
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                    标准库概述
            
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                    regexp 包
            
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</li>

<li class="chapter " data-level="1.2.3.6.3" data-path="../the-way-to-go/eBook/09.3.html">
  
  <a href="../the-way-to-go/eBook/09.3.html">
    
                    
                    锁和 sync 包
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.6.4" data-path="../the-way-to-go/eBook/09.4.html">
  
  <a href="../the-way-to-go/eBook/09.4.html">
    
                    
                    精密计算和 big 包
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.6.5" data-path="../the-way-to-go/eBook/09.5.html">
  
  <a href="../the-way-to-go/eBook/09.5.html">
    
                    
                    自定义包和可见性
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.6.6" data-path="../the-way-to-go/eBook/09.6.html">
  
  <a href="../the-way-to-go/eBook/09.6.html">
    
                    
                    为自定义包使用 godoc
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.6.7" data-path="../the-way-to-go/eBook/09.7.html">
  
  <a href="../the-way-to-go/eBook/09.7.html">
    
                    
                    使用 go install 安装自定义包
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.6.8" data-path="../the-way-to-go/eBook/09.8.html">
  
  <a href="../the-way-to-go/eBook/09.8.html">
    
                    
                    自定义包的目录结构、go install 和 go test
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.6.9" data-path="../the-way-to-go/eBook/09.9.html">
  
  <a href="../the-way-to-go/eBook/09.9.html">
    
                    
                    通过 Git 打包和安装
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.6.10" data-path="../the-way-to-go/eBook/09.10.html">
  
  <a href="../the-way-to-go/eBook/09.10.html">
    
                    
                    Go 的外部包和项目
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.6.11" data-path="../the-way-to-go/eBook/09.11.html">
  
  <a href="../the-way-to-go/eBook/09.11.html">
    
                    
                    在 Go 程序中使用外部库
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.2.3.7" data-path="../the-way-to-go/eBook/10.0.html">
  
  <a href="../the-way-to-go/eBook/10.0.html">
    
                    
                    结构（struct）与方法（method）
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.2.3.7.1" data-path="../the-way-to-go/eBook/10.1.html">
  
  <a href="../the-way-to-go/eBook/10.1.html">
    
                    
                    结构体定义
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.7.2" data-path="../the-way-to-go/eBook/10.2.html">
  
  <a href="../the-way-to-go/eBook/10.2.html">
    
                    
                    使用工厂方法创建结构体实例
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.7.3" data-path="../the-way-to-go/eBook/10.3.html">
  
  <a href="../the-way-to-go/eBook/10.3.html">
    
                    
                    使用自定义包中的结构体
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.7.4" data-path="../the-way-to-go/eBook/10.4.html">
  
  <a href="../the-way-to-go/eBook/10.4.html">
    
                    
                    带标签的结构体
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.7.5" data-path="../the-way-to-go/eBook/10.5.html">
  
  <a href="../the-way-to-go/eBook/10.5.html">
    
                    
                    匿名字段和内嵌结构体
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.7.6" data-path="../the-way-to-go/eBook/10.6.html">
  
  <a href="../the-way-to-go/eBook/10.6.html">
    
                    
                    方法
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.7.7" data-path="../the-way-to-go/eBook/10.7.html">
  
  <a href="../the-way-to-go/eBook/10.7.html">
    
                    
                    类型的 String() 方法和格式化描述符
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.7.8" data-path="../the-way-to-go/eBook/10.8.html">
  
  <a href="../the-way-to-go/eBook/10.8.html">
    
                    
                    垃圾回收和 SetFinalizer
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.2.3.8" data-path="../the-way-to-go/eBook/11.0.html">
  
  <a href="../the-way-to-go/eBook/11.0.html">
    
                    
                    接口（interface）与反射（reflection）
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.2.3.8.1" data-path="../the-way-to-go/eBook/11.1.html">
  
  <a href="../the-way-to-go/eBook/11.1.html">
    
                    
                    接口是什么
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.2" data-path="../the-way-to-go/eBook/11.2.html">
  
  <a href="../the-way-to-go/eBook/11.2.html">
    
                    
                    接口嵌套接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.3" data-path="../the-way-to-go/eBook/11.3.html">
  
  <a href="../the-way-to-go/eBook/11.3.html">
    
                    
                    类型断言：如何检测和转换接口变量的类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.4" data-path="../the-way-to-go/eBook/11.4.html">
  
  <a href="../the-way-to-go/eBook/11.4.html">
    
                    
                    类型判断：type-switch
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.5" data-path="../the-way-to-go/eBook/11.5.html">
  
  <a href="../the-way-to-go/eBook/11.5.html">
    
                    
                    测试一个值是否实现了某个接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.6" data-path="../the-way-to-go/eBook/11.6.html">
  
  <a href="../the-way-to-go/eBook/11.6.html">
    
                    
                    使用方法集与接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.7" data-path="../the-way-to-go/eBook/11.7.html">
  
  <a href="../the-way-to-go/eBook/11.7.html">
    
                    
                    第一个例子：使用 Sorter 接口排序
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.8" data-path="../the-way-to-go/eBook/11.8.html">
  
  <a href="../the-way-to-go/eBook/11.8.html">
    
                    
                    第二个例子：读和写
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.9" data-path="../the-way-to-go/eBook/11.9.html">
  
  <a href="../the-way-to-go/eBook/11.9.html">
    
                    
                    空接口
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.2.3.8.9.1" data-path="../the-way-to-go/eBook/11.10.html">
  
  <a href="../the-way-to-go/eBook/11.10.html">
    
                    
                    反射包
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.9.2" data-path="../the-way-to-go/eBook/11.11.html">
  
  <a href="../the-way-to-go/eBook/11.11.html">
    
                    
                    Printf 和反射
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.9.3" data-path="../the-way-to-go/eBook/11.12.html">
  
  <a href="../the-way-to-go/eBook/11.12.html">
    
                    
                    接口与动态类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.9.4" data-path="../the-way-to-go/eBook/11.13.html">
  
  <a href="../the-way-to-go/eBook/11.13.html">
    
                    
                    总结：Go 中的面向对象
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.3.8.9.5" data-path="../the-way-to-go/eBook/11.14.html">
  
  <a href="../the-way-to-go/eBook/11.14.html">
    
                    
                    结构体、集合和高阶函数
            
    </a>
    

    
</li>


    </ul>
    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.2.4" >
  
      <span>
            
                    
                    第三部分：Go 高级编程
            
    </span>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.2.4.1" data-path="../the-way-to-go/eBook/12.0.html">
  
  <a href="../the-way-to-go/eBook/12.0.html">
    
                    
                    读写数据
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.2.4.1.1" data-path="../the-way-to-go/eBook/12.1.html">
  
  <a href="../the-way-to-go/eBook/12.1.html">
    
                    
                    读取用户的输入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.2" data-path="../the-way-to-go/eBook/12.2.html">
  
  <a href="../the-way-to-go/eBook/12.2.html">
    
                    
                    文件读写
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.3" data-path="../the-way-to-go/eBook/12.3.html">
  
  <a href="../the-way-to-go/eBook/12.3.html">
    
                    
                    文件拷贝
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.4" data-path="../the-way-to-go/eBook/12.4.html">
  
  <a href="../the-way-to-go/eBook/12.4.html">
    
                    
                    从命令行读取参数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.5" data-path="../the-way-to-go/eBook/12.5.html">
  
  <a href="../the-way-to-go/eBook/12.5.html">
    
                    
                    用 buffer 读取文件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.6" data-path="../the-way-to-go/eBook/12.6.html">
  
  <a href="../the-way-to-go/eBook/12.6.html">
    
                    
                    用切片读写文件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.7" data-path="../the-way-to-go/eBook/12.7.html">
  
  <a href="../the-way-to-go/eBook/12.7.html">
    
                    
                    用 defer 关闭文件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.8" data-path="../the-way-to-go/eBook/12.8.html">
  
  <a href="../the-way-to-go/eBook/12.8.html">
    
                    
                    使用接口的实际例子：fmt.Fprintf
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.9" data-path="../the-way-to-go/eBook/12.9.html">
  
  <a href="../the-way-to-go/eBook/12.9.html">
    
                    
                    格式化 JSON 数据
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.10" data-path="../the-way-to-go/eBook/12.10.html">
  
  <a href="../the-way-to-go/eBook/12.10.html">
    
                    
                    XML 数据格式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.11" data-path="../the-way-to-go/eBook/12.11.html">
  
  <a href="../the-way-to-go/eBook/12.11.html">
    
                    
                    用 Gob 传输数据
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.1.12" data-path="../the-way-to-go/eBook/12.12.html">
  
  <a href="../the-way-to-go/eBook/12.12.html">
    
                    
                    Go 中的密码学
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.2.4.2" data-path="../the-way-to-go/eBook/13.0.html">
  
  <a href="../the-way-to-go/eBook/13.0.html">
    
                    
                    错误处理与测试
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.2.4.2.1" data-path="../the-way-to-go/eBook/13.1.html">
  
  <a href="../the-way-to-go/eBook/13.1.html">
    
                    
                    错误处理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.2" data-path="../the-way-to-go/eBook/13.2.html">
  
  <a href="../the-way-to-go/eBook/13.2.html">
    
                    
                    运行时异常和 panic
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.3" data-path="../the-way-to-go/eBook/13.3.html">
  
  <a href="../the-way-to-go/eBook/13.3.html">
    
                    
                    从 panic 中恢复（Recover）
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.4" data-path="../the-way-to-go/eBook/13.4.html">
  
  <a href="../the-way-to-go/eBook/13.4.html">
    
                    
                    自定义包中的错误处理和 panicking
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.5" data-path="../the-way-to-go/eBook/13.5.html">
  
  <a href="../the-way-to-go/eBook/13.5.html">
    
                    
                    一种用闭包处理错误的模式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.6" data-path="../the-way-to-go/eBook/13.6.html">
  
  <a href="../the-way-to-go/eBook/13.6.html">
    
                    
                    启动外部命令和程序
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.7" data-path="../the-way-to-go/eBook/13.7.html">
  
  <a href="../the-way-to-go/eBook/13.7.html">
    
                    
                    Go 中的单元测试和基准测试
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.8" data-path="../the-way-to-go/eBook/13.8.html">
  
  <a href="../the-way-to-go/eBook/13.8.html">
    
                    
                    测试的具体例子
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.9" data-path="../the-way-to-go/eBook/13.9.html">
  
  <a href="../the-way-to-go/eBook/13.9.html">
    
                    
                    用（测试数据）表驱动测试
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.2.4.2.10" data-path="../the-way-to-go/eBook/13.10.html">
  
  <a href="../the-way-to-go/eBook/13.10.html">
    
                    
                    性能调试：分析并优化 Go 程序
            
    </a>
    

    
</li>


    </ul>
    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3" data-path="../gopl/">
  
  <a href="../gopl/">
    
                    
                    Go语言圣经
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.1" data-path="../gopl/preface.html">
  
  <a href="../gopl/preface.html">
    
                    
                    前言
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.1.1" data-path="../gopl/ch0/ch0-01.html">
  
  <a href="../gopl/ch0/ch0-01.html">
    
                    
                    Go语言起源
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.1.2" data-path="../gopl/ch0/ch0-02.html">
  
  <a href="../gopl/ch0/ch0-02.html">
    
                    
                    Go语言项目
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.1.3" data-path="../gopl/ch0/ch0-03.html">
  
  <a href="../gopl/ch0/ch0-03.html">
    
                    
                    本书的组织
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.1.4" data-path="../gopl/ch0/ch0-04.html">
  
  <a href="../gopl/ch0/ch0-04.html">
    
                    
                    更多的信息
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.1.5" data-path="../gopl/ch0/ch0-05.html">
  
  <a href="../gopl/ch0/ch0-05.html">
    
                    
                    致谢
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.2" data-path="../gopl/ch1/ch1.html">
  
  <a href="../gopl/ch1/ch1.html">
    
                    
                    入门
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.2.1" data-path="../gopl/ch1/ch1-01.html">
  
  <a href="../gopl/ch1/ch1-01.html">
    
                    
                    Hello, World
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.2.2" data-path="../gopl/ch1/ch1-02.html">
  
  <a href="../gopl/ch1/ch1-02.html">
    
                    
                    命令行参数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.2.3" data-path="../gopl/ch1/ch1-03.html">
  
  <a href="../gopl/ch1/ch1-03.html">
    
                    
                    查找重复的行
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.2.4" data-path="../gopl/ch1/ch1-04.html">
  
  <a href="../gopl/ch1/ch1-04.html">
    
                    
                    GIF动画
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.2.5" data-path="../gopl/ch1/ch1-05.html">
  
  <a href="../gopl/ch1/ch1-05.html">
    
                    
                    获取URL
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.2.6" data-path="../gopl/ch1/ch1-06.html">
  
  <a href="../gopl/ch1/ch1-06.html">
    
                    
                    并发获取多个URL
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.2.7" data-path="../gopl/ch1/ch1-07.html">
  
  <a href="../gopl/ch1/ch1-07.html">
    
                    
                    Web服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.2.8" data-path="../gopl/ch1/ch1-08.html">
  
  <a href="../gopl/ch1/ch1-08.html">
    
                    
                    本章要点
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.3" data-path="../gopl/ch2/ch2.html">
  
  <a href="../gopl/ch2/ch2.html">
    
                    
                    程序结构
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.3.1" data-path="../gopl/ch2/ch2-01.html">
  
  <a href="../gopl/ch2/ch2-01.html">
    
                    
                    命名
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.3.2" data-path="../gopl/ch2/ch2-02.html">
  
  <a href="../gopl/ch2/ch2-02.html">
    
                    
                    声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.3.3" data-path="../gopl/ch2/ch2-03.html">
  
  <a href="../gopl/ch2/ch2-03.html">
    
                    
                    变量
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.3.4" data-path="../gopl/ch2/ch2-04.html">
  
  <a href="../gopl/ch2/ch2-04.html">
    
                    
                    赋值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.3.5" data-path="../gopl/ch2/ch2-05.html">
  
  <a href="../gopl/ch2/ch2-05.html">
    
                    
                    类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.3.6" data-path="../gopl/ch2/ch2-06.html">
  
  <a href="../gopl/ch2/ch2-06.html">
    
                    
                    包和文件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.3.7" data-path="../gopl/ch2/ch2-07.html">
  
  <a href="../gopl/ch2/ch2-07.html">
    
                    
                    作用域
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.4" data-path="../gopl/ch3/ch3.html">
  
  <a href="../gopl/ch3/ch3.html">
    
                    
                    基础数据类型
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.4.1" data-path="../gopl/ch3/ch3-01.html">
  
  <a href="../gopl/ch3/ch3-01.html">
    
                    
                    整型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.2" data-path="../gopl/ch3/ch3-02.html">
  
  <a href="../gopl/ch3/ch3-02.html">
    
                    
                    浮点数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.3" data-path="../gopl/ch3/ch3-03.html">
  
  <a href="../gopl/ch3/ch3-03.html">
    
                    
                    复数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.4" data-path="../gopl/ch3/ch3-04.html">
  
  <a href="../gopl/ch3/ch3-04.html">
    
                    
                    布尔型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.5" data-path="../gopl/ch3/ch3-05.html">
  
  <a href="../gopl/ch3/ch3-05.html">
    
                    
                    字符串
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.4.6" data-path="../gopl/ch3/ch3-06.html">
  
  <a href="../gopl/ch3/ch3-06.html">
    
                    
                    常量
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.5" data-path="../gopl/ch4/ch4.html">
  
  <a href="../gopl/ch4/ch4.html">
    
                    
                    复合数据类型
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.5.1" data-path="../gopl/ch4/ch4-01.html">
  
  <a href="../gopl/ch4/ch4-01.html">
    
                    
                    数组
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.2" data-path="../gopl/ch4/ch4-02.html">
  
  <a href="../gopl/ch4/ch4-02.html">
    
                    
                    Slice
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.3" data-path="../gopl/ch4/ch4-03.html">
  
  <a href="../gopl/ch4/ch4-03.html">
    
                    
                    Map
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.4" data-path="../gopl/ch4/ch4-04.html">
  
  <a href="../gopl/ch4/ch4-04.html">
    
                    
                    结构体
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.5" data-path="../gopl/ch4/ch4-05.html">
  
  <a href="../gopl/ch4/ch4-05.html">
    
                    
                    JSON
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.5.6" data-path="../gopl/ch4/ch4-06.html">
  
  <a href="../gopl/ch4/ch4-06.html">
    
                    
                    文本和HTML模板
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.6" data-path="../gopl/ch5/ch5.html">
  
  <a href="../gopl/ch5/ch5.html">
    
                    
                    函数
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.6.1" data-path="../gopl/ch5/ch5-01.html">
  
  <a href="../gopl/ch5/ch5-01.html">
    
                    
                    函数声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.2" data-path="../gopl/ch5/ch5-02.html">
  
  <a href="../gopl/ch5/ch5-02.html">
    
                    
                    递归
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.3" data-path="../gopl/ch5/ch5-03.html">
  
  <a href="../gopl/ch5/ch5-03.html">
    
                    
                    多返回值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.4" data-path="../gopl/ch5/ch5-04.html">
  
  <a href="../gopl/ch5/ch5-04.html">
    
                    
                    错误
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.5" data-path="../gopl/ch5/ch5-05.html">
  
  <a href="../gopl/ch5/ch5-05.html">
    
                    
                    函数值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.6" data-path="../gopl/ch5/ch5-06.html">
  
  <a href="../gopl/ch5/ch5-06.html">
    
                    
                    匿名函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.7" data-path="../gopl/ch5/ch5-07.html">
  
  <a href="../gopl/ch5/ch5-07.html">
    
                    
                    可变参数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.8" data-path="../gopl/ch5/ch5-08.html">
  
  <a href="../gopl/ch5/ch5-08.html">
    
                    
                    Deferred函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.9" data-path="../gopl/ch5/ch5-09.html">
  
  <a href="../gopl/ch5/ch5-09.html">
    
                    
                    Panic异常
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.6.10" data-path="../gopl/ch5/ch5-10.html">
  
  <a href="../gopl/ch5/ch5-10.html">
    
                    
                    Recover捕获异常
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.7" data-path="../gopl/ch6/ch6.html">
  
  <a href="../gopl/ch6/ch6.html">
    
                    
                    方法
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.7.1" data-path="../gopl/ch6/ch6-01.html">
  
  <a href="../gopl/ch6/ch6-01.html">
    
                    
                    方法声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.2" data-path="../gopl/ch6/ch6-02.html">
  
  <a href="../gopl/ch6/ch6-02.html">
    
                    
                    基于指针对象的方法
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.3" data-path="../gopl/ch6/ch6-03.html">
  
  <a href="../gopl/ch6/ch6-03.html">
    
                    
                    通过嵌入结构体来扩展类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.4" data-path="../gopl/ch6/ch6-04.html">
  
  <a href="../gopl/ch6/ch6-04.html">
    
                    
                    方法值和方法表达式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.5" data-path="../gopl/ch6/ch6-05.html">
  
  <a href="../gopl/ch6/ch6-05.html">
    
                    
                    示例: Bit数组
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.7.6" data-path="../gopl/ch6/ch6-06.html">
  
  <a href="../gopl/ch6/ch6-06.html">
    
                    
                    封装
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.8" data-path="../gopl/ch7/ch7.html">
  
  <a href="../gopl/ch7/ch7.html">
    
                    
                    接口
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.8.1" data-path="../gopl/ch7/ch7-01.html">
  
  <a href="../gopl/ch7/ch7-01.html">
    
                    
                    接口是合约
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.2" data-path="../gopl/ch7/ch7-02.html">
  
  <a href="../gopl/ch7/ch7-02.html">
    
                    
                    接口类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.3" data-path="../gopl/ch7/ch7-03.html">
  
  <a href="../gopl/ch7/ch7-03.html">
    
                    
                    实现接口的条件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.4" data-path="../gopl/ch7/ch7-04.html">
  
  <a href="../gopl/ch7/ch7-04.html">
    
                    
                    flag.Value接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.5" data-path="../gopl/ch7/ch7-05.html">
  
  <a href="../gopl/ch7/ch7-05.html">
    
                    
                    接口值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.6" data-path="../gopl/ch7/ch7-06.html">
  
  <a href="../gopl/ch7/ch7-06.html">
    
                    
                    sort.Interface接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.7" data-path="../gopl/ch7/ch7-07.html">
  
  <a href="../gopl/ch7/ch7-07.html">
    
                    
                    http.Handler接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.8" data-path="../gopl/ch7/ch7-08.html">
  
  <a href="../gopl/ch7/ch7-08.html">
    
                    
                    error接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.9" data-path="../gopl/ch7/ch7-09.html">
  
  <a href="../gopl/ch7/ch7-09.html">
    
                    
                    示例: 表达式求值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.10" data-path="../gopl/ch7/ch7-10.html">
  
  <a href="../gopl/ch7/ch7-10.html">
    
                    
                    类型断言
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.11" data-path="../gopl/ch7/ch7-11.html">
  
  <a href="../gopl/ch7/ch7-11.html">
    
                    
                    基于类型断言识别错误类型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.12" data-path="../gopl/ch7/ch7-12.html">
  
  <a href="../gopl/ch7/ch7-12.html">
    
                    
                    通过类型断言查询接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.13" data-path="../gopl/ch7/ch7-13.html">
  
  <a href="../gopl/ch7/ch7-13.html">
    
                    
                    类型分支
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.14" data-path="../gopl/ch7/ch7-14.html">
  
  <a href="../gopl/ch7/ch7-14.html">
    
                    
                    示例: 基于标记的XML解码
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.8.15" data-path="../gopl/ch7/ch7-15.html">
  
  <a href="../gopl/ch7/ch7-15.html">
    
                    
                    补充几点
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.9" data-path="../gopl/ch8/ch8.html">
  
  <a href="../gopl/ch8/ch8.html">
    
                    
                    Goroutines和Channels
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.9.1" data-path="../gopl/ch8/ch8-01.html">
  
  <a href="../gopl/ch8/ch8-01.html">
    
                    
                    Goroutines
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.2" data-path="../gopl/ch8/ch8-02.html">
  
  <a href="../gopl/ch8/ch8-02.html">
    
                    
                    示例: 并发的Clock服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.3" data-path="../gopl/ch8/ch8-03.html">
  
  <a href="../gopl/ch8/ch8-03.html">
    
                    
                    示例: 并发的Echo服务
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.4" data-path="../gopl/ch8/ch8-04.html">
  
  <a href="../gopl/ch8/ch8-04.html">
    
                    
                    Channels
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.5" data-path="../gopl/ch8/ch8-05.html">
  
  <a href="../gopl/ch8/ch8-05.html">
    
                    
                    并发的循环
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.6" data-path="../gopl/ch8/ch8-06.html">
  
  <a href="../gopl/ch8/ch8-06.html">
    
                    
                    示例: 并发的Web爬虫
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.7" data-path="../gopl/ch8/ch8-07.html">
  
  <a href="../gopl/ch8/ch8-07.html">
    
                    
                    基于select的多路复用
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.8" data-path="../gopl/ch8/ch8-08.html">
  
  <a href="../gopl/ch8/ch8-08.html">
    
                    
                    示例: 并发的目录遍历
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.9" data-path="../gopl/ch8/ch8-09.html">
  
  <a href="../gopl/ch8/ch8-09.html">
    
                    
                    并发的退出
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.9.10" data-path="../gopl/ch8/ch8-10.html">
  
  <a href="../gopl/ch8/ch8-10.html">
    
                    
                    示例: 聊天服务
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.10" data-path="../gopl/ch9/ch9.html">
  
  <a href="../gopl/ch9/ch9.html">
    
                    
                    基于共享变量的并发
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.10.1" data-path="../gopl/ch9/ch9-01.html">
  
  <a href="../gopl/ch9/ch9-01.html">
    
                    
                    竞争条件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.2" data-path="../gopl/ch9/ch9-02.html">
  
  <a href="../gopl/ch9/ch9-02.html">
    
                    
                    sync.Mutex互斥锁
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.3" data-path="../gopl/ch9/ch9-03.html">
  
  <a href="../gopl/ch9/ch9-03.html">
    
                    
                    sync.RWMutex读写锁
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.4" data-path="../gopl/ch9/ch9-04.html">
  
  <a href="../gopl/ch9/ch9-04.html">
    
                    
                    内存同步
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.5" data-path="../gopl/ch9/ch9-05.html">
  
  <a href="../gopl/ch9/ch9-05.html">
    
                    
                    sync.Once惰性初始化
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.6" data-path="../gopl/ch9/ch9-06.html">
  
  <a href="../gopl/ch9/ch9-06.html">
    
                    
                    竞争条件检测
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.7" data-path="../gopl/ch9/ch9-07.html">
  
  <a href="../gopl/ch9/ch9-07.html">
    
                    
                    示例: 并发的非阻塞缓存
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.10.8" data-path="../gopl/ch9/ch9-08.html">
  
  <a href="../gopl/ch9/ch9-08.html">
    
                    
                    Goroutines和线程
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.11" data-path="../gopl/ch10/ch10.html">
  
  <a href="../gopl/ch10/ch10.html">
    
                    
                    包和工具
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.11.1" data-path="../gopl/ch10/ch10-01.html">
  
  <a href="../gopl/ch10/ch10-01.html">
    
                    
                    包简介
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.2" data-path="../gopl/ch10/ch10-02.html">
  
  <a href="../gopl/ch10/ch10-02.html">
    
                    
                    导入路径
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.3" data-path="../gopl/ch10/ch10-03.html">
  
  <a href="../gopl/ch10/ch10-03.html">
    
                    
                    包声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.4" data-path="../gopl/ch10/ch10-04.html">
  
  <a href="../gopl/ch10/ch10-04.html">
    
                    
                    导入声明
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.5" data-path="../gopl/ch10/ch10-05.html">
  
  <a href="../gopl/ch10/ch10-05.html">
    
                    
                    包的匿名导入
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.6" data-path="../gopl/ch10/ch10-06.html">
  
  <a href="../gopl/ch10/ch10-06.html">
    
                    
                    包和命名
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.11.7" data-path="../gopl/ch10/ch10-07.html">
  
  <a href="../gopl/ch10/ch10-07.html">
    
                    
                    工具
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.12" data-path="../gopl/ch11/ch11.html">
  
  <a href="../gopl/ch11/ch11.html">
    
                    
                    测试
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.12.1" data-path="../gopl/ch11/ch11-01.html">
  
  <a href="../gopl/ch11/ch11-01.html">
    
                    
                    go test
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.2" data-path="../gopl/ch11/ch11-02.html">
  
  <a href="../gopl/ch11/ch11-02.html">
    
                    
                    测试函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.3" data-path="../gopl/ch11/ch11-03.html">
  
  <a href="../gopl/ch11/ch11-03.html">
    
                    
                    测试覆盖率
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.4" data-path="../gopl/ch11/ch11-04.html">
  
  <a href="../gopl/ch11/ch11-04.html">
    
                    
                    基准测试
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.5" data-path="../gopl/ch11/ch11-05.html">
  
  <a href="../gopl/ch11/ch11-05.html">
    
                    
                    剖析
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.12.6" data-path="../gopl/ch11/ch11-06.html">
  
  <a href="../gopl/ch11/ch11-06.html">
    
                    
                    示例函数
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.13" data-path="../gopl/ch12/ch12.html">
  
  <a href="../gopl/ch12/ch12.html">
    
                    
                    反射
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.3.13.1" data-path="../gopl/ch12/ch12-01.html">
  
  <a href="../gopl/ch12/ch12-01.html">
    
                    
                    为何需要反射?
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.2" data-path="../gopl/ch12/ch12-02.html">
  
  <a href="../gopl/ch12/ch12-02.html">
    
                    
                    reflect.Type和reflect.Value
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.3" data-path="../gopl/ch12/ch12-03.html">
  
  <a href="../gopl/ch12/ch12-03.html">
    
                    
                    Display递归打印
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.4" data-path="../gopl/ch12/ch12-04.html">
  
  <a href="../gopl/ch12/ch12-04.html">
    
                    
                    示例: 编码S表达式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.5" data-path="../gopl/ch12/ch12-05.html">
  
  <a href="../gopl/ch12/ch12-05.html">
    
                    
                    通过reflect.Value修改值
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.3.13.6" data-path="../gopl/ch12/ch12-06.html">
  
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                    示例: 解码S表达式
            
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</li>

<li class="chapter " data-level="1.3.13.7" data-path="../gopl/ch12/ch12-07.html">
  
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                    获取结构体字段标签
            
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</li>

<li class="chapter " data-level="1.3.13.8" data-path="../gopl/ch12/ch12-08.html">
  
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                    显示一个类型的方法集
            
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</li>

<li class="chapter " data-level="1.3.13.9" data-path="../gopl/ch12/ch12-09.html">
  
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                    几点忠告
            
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</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.14" data-path="../gopl/ch13/ch13.html">
  
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                    底层编程
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.3.14.1" data-path="../gopl/ch13/ch13-01.html">
  
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                    unsafe.Sizeof, Alignof 和 Offsetof
            
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</li>

<li class="chapter " data-level="1.3.14.2" data-path="../gopl/ch13/ch13-02.html">
  
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                    unsafe.Pointer
            
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</li>

<li class="chapter " data-level="1.3.14.3" data-path="../gopl/ch13/ch13-03.html">
  
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                    示例: 深度相等判断
            
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</li>

<li class="chapter " data-level="1.3.14.4" data-path="../gopl/ch13/ch13-04.html">
  
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                    通过cgo调用C代码
            
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</li>

<li class="chapter " data-level="1.3.14.5" data-path="../gopl/ch13/ch13-05.html">
  
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                    几点忠告
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.3.15" data-path="../gopl/appendix/appendix.html">
  
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                    附录
            
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<li class="chapter " data-level="1.3.15.1" data-path="../gopl/appendix/appendix-a-errata.html">
  
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                    附录A：原文勘误
            
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<li class="chapter " data-level="1.3.15.2" data-path="../gopl/appendix/appendix-b-author.html">
  
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                    附录B：作者译者
            
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<li class="chapter " data-level="1.3.15.3" data-path="../gopl/appendix/appendix-c-cpoyright.html">
  
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                    附录C：译文授权
            
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<li class="chapter " data-level="1.3.15.4" data-path="../gopl/appendix/appendix-d-translations.html">
  
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                    附录D：其它语言
            
    </a>
    

    
</li>


    </ul>
    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4" data-path="./">
  
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                    Go Web 编程
            
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<li class="chapter " data-level="1.4.1" data-path="01.0.html">
  
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                    Go环境配置
            
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<li class="chapter " data-level="1.4.1.1" data-path="01.1.html">
  
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                    Go安装
            
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<li class="chapter " data-level="1.4.1.2" data-path="01.2.html">
  
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                    GOPATH 与工作空间
            
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<li class="chapter " data-level="1.4.1.3" data-path="01.3.html">
  
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                    Go 命令
            
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<li class="chapter " data-level="1.4.1.4" data-path="01.4.html">
  
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                    Go开发工具
            
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<li class="chapter " data-level="1.4.1.5" data-path="01.5.html">
  
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                    小结
            
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</li>

<li class="chapter " data-level="1.4.2" data-path="02.0.html">
  
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                    Go语言基础
            
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<li class="chapter " data-level="1.4.2.1" data-path="02.1.html">
  
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                    你好，Go
            
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<li class="chapter " data-level="1.4.2.2" data-path="02.2.html">
  
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                    Go基础
            
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<li class="chapter " data-level="1.4.2.3" data-path="02.3.html">
  
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                    流程和函数
            
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<li class="chapter " data-level="1.4.2.4" data-path="02.4.html">
  
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                    struct
            
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</li>

<li class="chapter " data-level="1.4.2.5" data-path="02.5.html">
  
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                    面向对象
            
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</li>

<li class="chapter " data-level="1.4.2.6" data-path="02.6.html">
  
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                    interface
            
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</li>

<li class="chapter " data-level="1.4.2.7" data-path="02.7.html">
  
  <a href="02.7.html">
    
                    
                    并发
            
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</li>

<li class="chapter " data-level="1.4.2.8" data-path="02.8.html">
  
  <a href="02.8.html">
    
                    
                    小结
            
    </a>
    

    
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    </ul>
    
</li>

<li class="chapter " data-level="1.4.3" data-path="03.0.html">
  
  <a href="03.0.html">
    
                    
                    Web基础
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.3.1" data-path="03.1.html">
  
  <a href="03.1.html">
    
                    
                    web工作方式
            
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</li>

<li class="chapter " data-level="1.4.3.2" data-path="03.2.html">
  
  <a href="03.2.html">
    
                    
                    Go搭建一个简单的web服务
            
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</li>

<li class="chapter " data-level="1.4.3.3" data-path="03.3.html">
  
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                    Go如何使得web工作
            
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</li>

<li class="chapter " data-level="1.4.3.4" data-path="03.4.html">
  
  <a href="03.4.html">
    
                    
                    Go的http包详解
            
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</li>

<li class="chapter " data-level="1.4.3.5" data-path="03.5.html">
  
  <a href="03.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.4" data-path="04.0.html">
  
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                    表单
            
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<li class="chapter " data-level="1.4.4.1" data-path="04.1.html">
  
  <a href="04.1.html">
    
                    
                    处理表单的输入
            
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</li>

<li class="chapter " data-level="1.4.4.2" data-path="04.2.html">
  
  <a href="04.2.html">
    
                    
                    验证表单的输入
            
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</li>

<li class="chapter " data-level="1.4.4.3" data-path="04.3.html">
  
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                    预防跨站脚本
            
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<li class="chapter " data-level="1.4.4.4" data-path="04.4.html">
  
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                    防止多次递交表单
            
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</li>

<li class="chapter " data-level="1.4.4.5" data-path="04.5.html">
  
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                    处理文件上传
            
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</li>

<li class="chapter " data-level="1.4.4.6" data-path="04.6.html">
  
  <a href="04.6.html">
    
                    
                    小结
            
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</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.5" data-path="05.0.html">
  
  <a href="05.0.html">
    
                    
                    访问数据库
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.5.1" data-path="05.1.html">
  
  <a href="05.1.html">
    
                    
                    database/sql接口
            
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</li>

<li class="chapter " data-level="1.4.5.2" data-path="05.2.html">
  
  <a href="05.2.html">
    
                    
                    使用MySQL数据库
            
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</li>

<li class="chapter " data-level="1.4.5.3" data-path="05.3.html">
  
  <a href="05.3.html">
    
                    
                    使用SQLite数据库
            
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</li>

<li class="chapter " data-level="1.4.5.4" data-path="05.4.html">
  
  <a href="05.4.html">
    
                    
                    使用PostgreSQL数据库
            
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</li>

<li class="chapter " data-level="1.4.5.5" data-path="05.5.html">
  
  <a href="05.5.html">
    
                    
                    使用beedb库进行ORM开发
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.5.6" data-path="05.6.html">
  
  <a href="05.6.html">
    
                    
                    NOSQL数据库操作
            
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</li>

<li class="chapter " data-level="1.4.5.7" data-path="05.7.html">
  
  <a href="05.7.html">
    
                    
                    小结
            
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</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.6" data-path="06.0.html">
  
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                    session和数据存储
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.6.1" data-path="06.1.html">
  
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                    session和cookie
            
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</li>

<li class="chapter " data-level="1.4.6.2" data-path="06.2.html">
  
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                    Go如何使用session
            
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<li class="chapter " data-level="1.4.6.3" data-path="06.3.html">
  
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                    session存储
            
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</li>

<li class="chapter " data-level="1.4.6.4" data-path="06.4.html">
  
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                    预防session劫持
            
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</li>

<li class="chapter " data-level="1.4.6.5" data-path="06.5.html">
  
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                    小结
            
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    </ul>
    
</li>

<li class="chapter " data-level="1.4.7" data-path="07.0.html">
  
  <a href="07.0.html">
    
                    
                    文本文件处理
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.7.1" data-path="07.1.html">
  
  <a href="07.1.html">
    
                    
                    XML处理
            
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</li>

<li class="chapter " data-level="1.4.7.2" data-path="07.2.html">
  
  <a href="07.2.html">
    
                    
                    JSON处理
            
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</li>

<li class="chapter " data-level="1.4.7.3" data-path="07.3.html">
  
  <a href="07.3.html">
    
                    
                    正则处理
            
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</li>

<li class="chapter " data-level="1.4.7.4" data-path="07.4.html">
  
  <a href="07.4.html">
    
                    
                    模板处理
            
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</li>

<li class="chapter " data-level="1.4.7.5" data-path="07.5.html">
  
  <a href="07.5.html">
    
                    
                    文件操作
            
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</li>

<li class="chapter " data-level="1.4.7.6" data-path="07.6.html">
  
  <a href="07.6.html">
    
                    
                    字符串处理
            
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</li>

<li class="chapter " data-level="1.4.7.7" data-path="07.7.html">
  
  <a href="07.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.8" data-path="08.0.html">
  
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                    Web服务
            
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    <ul class="articles">
      

<li class="chapter active" data-level="1.4.8.1" data-path="08.1.html">
  
  <a href="08.1.html">
    
                    
                    Socket编程
            
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</li>

<li class="chapter " data-level="1.4.8.2" data-path="08.2.html">
  
  <a href="08.2.html">
    
                    
                    WebSocket
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.3" data-path="08.3.html">
  
  <a href="08.3.html">
    
                    
                    REST
            
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</li>

<li class="chapter " data-level="1.4.8.4" data-path="08.4.html">
  
  <a href="08.4.html">
    
                    
                    RPC
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.8.5" data-path="08.5.html">
  
  <a href="08.5.html">
    
                    
                    小结
            
    </a>
    

    
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    </ul>
    
</li>

<li class="chapter " data-level="1.4.9" data-path="09.0.html">
  
  <a href="09.0.html">
    
                    
                    安全与加密
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.9.1" data-path="09.1.html">
  
  <a href="09.1.html">
    
                    
                    预防CSRF攻击
            
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</li>

<li class="chapter " data-level="1.4.9.2" data-path="09.2.html">
  
  <a href="09.2.html">
    
                    
                    确保输入过滤
            
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</li>

<li class="chapter " data-level="1.4.9.3" data-path="09.3.html">
  
  <a href="09.3.html">
    
                    
                    避免XSS攻击
            
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</li>

<li class="chapter " data-level="1.4.9.4" data-path="09.4.html">
  
  <a href="09.4.html">
    
                    
                    避免SQL注入
            
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</li>

<li class="chapter " data-level="1.4.9.5" data-path="09.5.html">
  
  <a href="09.5.html">
    
                    
                    存储密码
            
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</li>

<li class="chapter " data-level="1.4.9.6" data-path="09.6.html">
  
  <a href="09.6.html">
    
                    
                    加密和解密数据
            
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</li>

<li class="chapter " data-level="1.4.9.7" data-path="09.7.html">
  
  <a href="09.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.10" data-path="10.0.html">
  
  <a href="10.0.html">
    
                    
                    国际化和本地化
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.10.1" data-path="10.1.html">
  
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                    设置默认地区
            
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</li>

<li class="chapter " data-level="1.4.10.2" data-path="10.2.html">
  
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                    本地化资源
            
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</li>

<li class="chapter " data-level="1.4.10.3" data-path="10.3.html">
  
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                    国际化站点
            
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</li>

<li class="chapter " data-level="1.4.10.4" data-path="10.4.html">
  
  <a href="10.4.html">
    
                    
                    小结
            
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</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.11" data-path="11.0.html">
  
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                    错误处理，调试和测试
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.11.1" data-path="11.1.html">
  
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                    错误处理
            
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</li>

<li class="chapter " data-level="1.4.11.2" data-path="11.2.html">
  
  <a href="11.2.html">
    
                    
                    使用GDB调试
            
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</li>

<li class="chapter " data-level="1.4.11.3" data-path="11.3.html">
  
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                    Go怎么写测试用例
            
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</li>

<li class="chapter " data-level="1.4.11.4" data-path="11.4.html">
  
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                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.12" data-path="12.0.html">
  
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                    部署与维护
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.12.1" data-path="12.1.html">
  
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                    应用日志
            
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</li>

<li class="chapter " data-level="1.4.12.2" data-path="12.2.html">
  
  <a href="12.2.html">
    
                    
                    网站错误处理
            
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</li>

<li class="chapter " data-level="1.4.12.3" data-path="12.3.html">
  
  <a href="12.3.html">
    
                    
                    应用部署
            
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</li>

<li class="chapter " data-level="1.4.12.4" data-path="12.4.html">
  
  <a href="12.4.html">
    
                    
                    备份和恢复
            
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</li>

<li class="chapter " data-level="1.4.12.5" data-path="12.5.html">
  
  <a href="12.5.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.13" data-path="13.0.html">
  
  <a href="13.0.html">
    
                    
                    如何设计一个Web框架
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.4.13.1" data-path="13.1.html">
  
  <a href="13.1.html">
    
                    
                    项目规划
            
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</li>

<li class="chapter " data-level="1.4.13.2" data-path="13.2.html">
  
  <a href="13.2.html">
    
                    
                    自定义路由器设计
            
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</li>

<li class="chapter " data-level="1.4.13.3" data-path="13.3.html">
  
  <a href="13.3.html">
    
                    
                    controller设计
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.4" data-path="13.4.html">
  
  <a href="13.4.html">
    
                    
                    日志和配置设计
            
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</li>

<li class="chapter " data-level="1.4.13.5" data-path="13.5.html">
  
  <a href="13.5.html">
    
                    
                    实现博客的增删改
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.13.6" data-path="13.6.html">
  
  <a href="13.6.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.14" data-path="14.0.html">
  
  <a href="14.0.html">
    
                    
                    扩展Web框架
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.4.14.1" data-path="14.1.html">
  
  <a href="14.1.html">
    
                    
                    静态文件支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.2" data-path="14.2.html">
  
  <a href="14.2.html">
    
                    
                    Session支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.3" data-path="14.3.html">
  
  <a href="14.3.html">
    
                    
                    表单支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.4" data-path="14.4.html">
  
  <a href="14.4.html">
    
                    
                    用户认证
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.5" data-path="14.5.html">
  
  <a href="14.5.html">
    
                    
                    多语言支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.6" data-path="14.6.html">
  
  <a href="14.6.html">
    
                    
                    pprof支持
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.4.14.7" data-path="14.7.html">
  
  <a href="14.7.html">
    
                    
                    小结
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.4.15" data-path="ref.html">
  
  <a href="ref.html">
    
                    
                    参考资料
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5" data-path="../advanced-go-programming-book/">
  
  <a href="../advanced-go-programming-book/">
    
                    
                    Go语言高级编程
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.1" data-path="../advanced-go-programming-book/ch1-basic/readme.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/readme.html">
    
                    
                    第1章 语言基础
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.1.1" data-path="../advanced-go-programming-book/ch1-basic/ch1-01-genesis.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/ch1-01-genesis.html">
    
                    
                    1.1 Go语言创世纪
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.2" data-path="../advanced-go-programming-book/ch1-basic/ch1-02-hello-revolution.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/ch1-02-hello-revolution.html">
    
                    
                    1.2 Hello, World 的革命
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.3" data-path="../advanced-go-programming-book/ch1-basic/ch1-03-array-string-and-slice.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/ch1-03-array-string-and-slice.html">
    
                    
                    1.3 数组、字符串和切片
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.4" data-path="../advanced-go-programming-book/ch1-basic/ch1-04-func-method-interface.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/ch1-04-func-method-interface.html">
    
                    
                    1.4 函数、方法和接口
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.5" data-path="../advanced-go-programming-book/ch1-basic/ch1-05-mem.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/ch1-05-mem.html">
    
                    
                    1.5 面向并发的内存模型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.6" data-path="../advanced-go-programming-book/ch1-basic/ch1-06-goroutine.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/ch1-06-goroutine.html">
    
                    
                    1.6 常见的并发模式
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.7" data-path="../advanced-go-programming-book/ch1-basic/ch1-07-error-and-panic.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/ch1-07-error-and-panic.html">
    
                    
                    1.7 错误和异常
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.1.8" data-path="../advanced-go-programming-book/ch1-basic/ch1-08-ext.html">
  
  <a href="../advanced-go-programming-book/ch1-basic/ch1-08-ext.html">
    
                    
                    1.8 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.2" data-path="../advanced-go-programming-book/ch2-cgo/readme.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/readme.html">
    
                    
                    第2章 CGO编程
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.2.1" data-path="../advanced-go-programming-book/ch2-cgo/ch2-01-hello-cgo.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-01-hello-cgo.html">
    
                    
                    2.1 快速入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.2" data-path="../advanced-go-programming-book/ch2-cgo/ch2-02-basic.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-02-basic.html">
    
                    
                    2.2 CGO基础
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.3" data-path="../advanced-go-programming-book/ch2-cgo/ch2-03-cgo-types.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-03-cgo-types.html">
    
                    
                    2.3 类型转换
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.4" data-path="../advanced-go-programming-book/ch2-cgo/ch2-04-func.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-04-func.html">
    
                    
                    2.4 函数调用
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.5" data-path="../advanced-go-programming-book/ch2-cgo/ch2-05-internal.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-05-internal.html">
    
                    
                    2.5 内部机制
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.6" data-path="../advanced-go-programming-book/ch2-cgo/ch2-06-qsort.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-06-qsort.html">
    
                    
                    2.6 实战: 封装qsort
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.7" data-path="../advanced-go-programming-book/ch2-cgo/ch2-07-memory.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-07-memory.html">
    
                    
                    2.7 CGO内存模型
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.8" data-path="../advanced-go-programming-book/ch2-cgo/ch2-08-class.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-08-class.html">
    
                    
                    2.8 C++类包装
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.9" data-path="../advanced-go-programming-book/ch2-cgo/ch2-09-static-shared-lib.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-09-static-shared-lib.html">
    
                    
                    2.9 静态库和动态库
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.10" data-path="../advanced-go-programming-book/ch2-cgo/ch2-10-link.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-10-link.html">
    
                    
                    2.10 编译和链接参数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.2.11" data-path="../advanced-go-programming-book/ch2-cgo/ch2-11-ext.html">
  
  <a href="../advanced-go-programming-book/ch2-cgo/ch2-11-ext.html">
    
                    
                    2.11 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.3" data-path="../advanced-go-programming-book/ch3-asm/readme.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/readme.html">
    
                    
                    第3章 汇编语言
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.3.1" data-path="../advanced-go-programming-book/ch3-asm/ch3-01-basic.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-01-basic.html">
    
                    
                    3.1 快速入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.2" data-path="../advanced-go-programming-book/ch3-asm/ch3-02-arch.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-02-arch.html">
    
                    
                    3.2 计算机结构
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.3" data-path="../advanced-go-programming-book/ch3-asm/ch3-03-const-and-var.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-03-const-and-var.html">
    
                    
                    3.3 常量和全局变量
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.4" data-path="../advanced-go-programming-book/ch3-asm/ch3-04-func.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-04-func.html">
    
                    
                    3.4 函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.5" data-path="../advanced-go-programming-book/ch3-asm/ch3-05-control-flow.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-05-control-flow.html">
    
                    
                    3.5 控制流
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.6" data-path="../advanced-go-programming-book/ch3-asm/ch3-06-func-again.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-06-func-again.html">
    
                    
                    3.6 再论函数
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.7" data-path="../advanced-go-programming-book/ch3-asm/ch3-07-hack-asm.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-07-hack-asm.html">
    
                    
                    3.7 汇编语言的威力
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.8" data-path="../advanced-go-programming-book/ch3-asm/ch3-08-goroutine-id.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-08-goroutine-id.html">
    
                    
                    3.8 例子：Goroutine ID
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.9" data-path="../advanced-go-programming-book/ch3-asm/ch3-09-debug.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-09-debug.html">
    
                    
                    3.9 Delve调试器
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.3.10" data-path="../advanced-go-programming-book/ch3-asm/ch3-10-ext.html">
  
  <a href="../advanced-go-programming-book/ch3-asm/ch3-10-ext.html">
    
                    
                    3.10 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.4" data-path="../advanced-go-programming-book/ch4-rpc/readme.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/readme.html">
    
                    
                    第4章 RPC和Protobuf
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.4.1" data-path="../advanced-go-programming-book/ch4-rpc/ch4-01-rpc-intro.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-01-rpc-intro.html">
    
                    
                    4.1 RPC入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.2" data-path="../advanced-go-programming-book/ch4-rpc/ch4-02-pb-intro.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-02-pb-intro.html">
    
                    
                    4.2 Protobuf
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.3" data-path="../advanced-go-programming-book/ch4-rpc/ch4-03-netrpc-hack.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-03-netrpc-hack.html">
    
                    
                    4.3 玩转RPC
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.4" data-path="../advanced-go-programming-book/ch4-rpc/ch4-04-grpc.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-04-grpc.html">
    
                    
                    4.4 GRPC入门
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.5" data-path="../advanced-go-programming-book/ch4-rpc/ch4-05-grpc-hack.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-05-grpc-hack.html">
    
                    
                    4.5 GRPC进阶
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.6" data-path="../advanced-go-programming-book/ch4-rpc/ch4-06-grpc-ext.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-06-grpc-ext.html">
    
                    
                    4.6 GRPC和Protobuf扩展
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.7" data-path="../advanced-go-programming-book/ch4-rpc/ch4-07-pbgo.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-07-pbgo.html">
    
                    
                    4.7 pbgo: 基于Protobuf的框架
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.8" data-path="../advanced-go-programming-book/ch4-rpc/ch4-08-grpcurl.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-08-grpcurl.html">
    
                    
                    4.8 grpcurl工具
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.4.9" data-path="../advanced-go-programming-book/ch4-rpc/ch4-09-ext.html">
  
  <a href="../advanced-go-programming-book/ch4-rpc/ch4-09-ext.html">
    
                    
                    4.9 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.5" data-path="../advanced-go-programming-book/ch5-web/readme.html">
  
  <a href="../advanced-go-programming-book/ch5-web/readme.html">
    
                    
                    第5章 Go和Web
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.5.1" data-path="../advanced-go-programming-book/ch5-web/ch5-01-introduction.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-01-introduction.html">
    
                    
                    5.1 Web开发简介
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.2" data-path="../advanced-go-programming-book/ch5-web/ch5-02-router.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-02-router.html">
    
                    
                    5.2 Router请求路由
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.3" data-path="../advanced-go-programming-book/ch5-web/ch5-03-middleware.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-03-middleware.html">
    
                    
                    5.3 Middleware中间件
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.4" data-path="../advanced-go-programming-book/ch5-web/ch5-04-validator.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-04-validator.html">
    
                    
                    5.4 Validator请求校验
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.5" data-path="../advanced-go-programming-book/ch5-web/ch5-05-database.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-05-database.html">
    
                    
                    5.5 Database和数据库打交道
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.6" data-path="../advanced-go-programming-book/ch5-web/ch5-06-ratelimit.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-06-ratelimit.html">
    
                    
                    5.6 Ratelimit 服务流量限制
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.7" data-path="../advanced-go-programming-book/ch5-web/ch5-07-layout-of-web-project.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-07-layout-of-web-project.html">
    
                    
                    5.7 Layout大型web项目分层
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.8" data-path="../advanced-go-programming-book/ch5-web/ch5-08-interface-and-web.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-08-interface-and-web.html">
    
                    
                    5.8 interface 和 table-driven 开发
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.9" data-path="../advanced-go-programming-book/ch5-web/ch5-09-gated-launch.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-09-gated-launch.html">
    
                    
                    5.9 灰度发布和 A/B test
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.5.10" data-path="../advanced-go-programming-book/ch5-web/ch5-10-ext.html">
  
  <a href="../advanced-go-programming-book/ch5-web/ch5-10-ext.html">
    
                    
                    5.10 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.6" data-path="../advanced-go-programming-book/ch6-cloud/readme.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/readme.html">
    
                    
                    第6章 分布式系统
            
    </a>
    

    
    <ul class="articles">
      

<li class="chapter " data-level="1.5.6.1" data-path="../advanced-go-programming-book/ch6-cloud/ch6-01-dist-id.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/ch6-01-dist-id.html">
    
                    
                    6.1 分布式 id 生成器
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.2" data-path="../advanced-go-programming-book/ch6-cloud/ch6-02-lock.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/ch6-02-lock.html">
    
                    
                    6.2 分布式锁
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.3" data-path="../advanced-go-programming-book/ch6-cloud/ch6-03-delay-job.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/ch6-03-delay-job.html">
    
                    
                    6.3 延时任务系统
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.4" data-path="../advanced-go-programming-book/ch6-cloud/ch6-04-search-engine.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/ch6-04-search-engine.html">
    
                    
                    6.4 分布式搜索引擎
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.5" data-path="../advanced-go-programming-book/ch6-cloud/ch6-05-load-balance.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/ch6-05-load-balance.html">
    
                    
                    6.5 负载均衡
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.6" data-path="../advanced-go-programming-book/ch6-cloud/ch6-06-config.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/ch6-06-config.html">
    
                    
                    6.6 分布式配置管理
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.7" data-path="../advanced-go-programming-book/ch6-cloud/ch6-07-crawler.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/ch6-07-crawler.html">
    
                    
                    6.7 分布式爬虫
            
    </a>
    

    
</li>

<li class="chapter " data-level="1.5.6.8" data-path="../advanced-go-programming-book/ch6-cloud/ch6-08-ext.html">
  
  <a href="../advanced-go-programming-book/ch6-cloud/ch6-08-ext.html">
    
                    
                    6.8 补充说明
            
    </a>
    

    
</li>


    </ul>
    
</li>

<li class="chapter " data-level="1.5.7" data-path="../advanced-go-programming-book/appendix/readme.html">
  
  <a href="../advanced-go-programming-book/appendix/readme.html">
    
                    
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    <h1>
        <i class="fa fa-circle-o-notch fa-spin"></i>
        <a href=".." >Socket编程</a>
    </h1>
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                                <section class="normal markdown-section">
                                
                                <h1 id="81-socket&#x7F16;&#x7A0B;">8.1 Socket&#x7F16;&#x7A0B;</h1>
<p>&#x5728;&#x5F88;&#x591A;&#x5E95;&#x5C42;&#x7F51;&#x7EDC;&#x5E94;&#x7528;&#x5F00;&#x53D1;&#x8005;&#x7684;&#x773C;&#x91CC;&#x4E00;&#x5207;&#x7F16;&#x7A0B;&#x90FD;&#x662F;Socket&#xFF0C;&#x8BDD;&#x867D;&#x7136;&#x6709;&#x70B9;&#x5938;&#x5F20;&#xFF0C;&#x4F46;&#x5374;&#x4E5F;&#x51E0;&#x4E4E;&#x5982;&#x6B64;&#x4E86;&#xFF0C;&#x73B0;&#x5728;&#x7684;&#x7F51;&#x7EDC;&#x7F16;&#x7A0B;&#x51E0;&#x4E4E;&#x90FD;&#x662F;&#x7528;Socket&#x6765;&#x7F16;&#x7A0B;&#x3002;&#x4F60;&#x60F3;&#x8FC7;&#x8FD9;&#x4E9B;&#x60C5;&#x666F;&#x4E48;&#xFF1F;&#x6211;&#x4EEC;&#x6BCF;&#x5929;&#x6253;&#x5F00;&#x6D4F;&#x89C8;&#x5668;&#x6D4F;&#x89C8;&#x7F51;&#x9875;&#x65F6;&#xFF0C;&#x6D4F;&#x89C8;&#x5668;&#x8FDB;&#x7A0B;&#x600E;&#x4E48;&#x548C;Web&#x670D;&#x52A1;&#x5668;&#x8FDB;&#x884C;&#x901A;&#x4FE1;&#x7684;&#x5462;&#xFF1F;&#x5F53;&#x4F60;&#x7528;QQ&#x804A;&#x5929;&#x65F6;&#xFF0C;QQ&#x8FDB;&#x7A0B;&#x600E;&#x4E48;&#x548C;&#x670D;&#x52A1;&#x5668;&#x6216;&#x8005;&#x662F;&#x4F60;&#x7684;&#x597D;&#x53CB;&#x6240;&#x5728;&#x7684;QQ&#x8FDB;&#x7A0B;&#x8FDB;&#x884C;&#x901A;&#x4FE1;&#x7684;&#x5462;&#xFF1F;&#x5F53;&#x4F60;&#x6253;&#x5F00;PPstream&#x89C2;&#x770B;&#x89C6;&#x9891;&#x65F6;&#xFF0C;PPstream&#x8FDB;&#x7A0B;&#x5982;&#x4F55;&#x4E0E;&#x89C6;&#x9891;&#x670D;&#x52A1;&#x5668;&#x8FDB;&#x884C;&#x901A;&#x4FE1;&#x7684;&#x5462;&#xFF1F; &#x5982;&#x6B64;&#x79CD;&#x79CD;&#xFF0C;&#x90FD;&#x662F;&#x9760;Socket&#x6765;&#x8FDB;&#x884C;&#x901A;&#x4FE1;&#x7684;&#xFF0C;&#x4EE5;&#x4E00;&#x6591;&#x7AA5;&#x5168;&#x8C79;&#xFF0C;&#x53EF;&#x89C1;Socket&#x7F16;&#x7A0B;&#x5728;&#x73B0;&#x4EE3;&#x7F16;&#x7A0B;&#x4E2D;&#x5360;&#x636E;&#x4E86;&#x591A;&#x4E48;&#x91CD;&#x8981;&#x7684;&#x5730;&#x4F4D;&#xFF0C;&#x8FD9;&#x4E00;&#x8282;&#x6211;&#x4EEC;&#x5C06;&#x4ECB;&#x7ECD;Go&#x8BED;&#x8A00;&#x4E2D;&#x5982;&#x4F55;&#x8FDB;&#x884C;Socket&#x7F16;&#x7A0B;&#x3002;</p>
<h2 id="&#x4EC0;&#x4E48;&#x662F;socket&#xFF1F;">&#x4EC0;&#x4E48;&#x662F;Socket&#xFF1F;</h2>
<p>Socket&#x8D77;&#x6E90;&#x4E8E;Unix&#xFF0C;&#x800C;Unix&#x57FA;&#x672C;&#x54F2;&#x5B66;&#x4E4B;&#x4E00;&#x5C31;&#x662F;&#x201C;&#x4E00;&#x5207;&#x7686;&#x6587;&#x4EF6;&#x201D;&#xFF0C;&#x90FD;&#x53EF;&#x4EE5;&#x7528;&#x201C;&#x6253;&#x5F00;open &#x2013;&gt; &#x8BFB;&#x5199;write/read &#x2013;&gt; &#x5173;&#x95ED;close&#x201D;&#x6A21;&#x5F0F;&#x6765;&#x64CD;&#x4F5C;&#x3002;Socket&#x5C31;&#x662F;&#x8BE5;&#x6A21;&#x5F0F;&#x7684;&#x4E00;&#x4E2A;&#x5B9E;&#x73B0;&#xFF0C;&#x7F51;&#x7EDC;&#x7684;Socket&#x6570;&#x636E;&#x4F20;&#x8F93;&#x662F;&#x4E00;&#x79CD;&#x7279;&#x6B8A;&#x7684;I/O&#xFF0C;Socket&#x4E5F;&#x662F;&#x4E00;&#x79CD;&#x6587;&#x4EF6;&#x63CF;&#x8FF0;&#x7B26;&#x3002;Socket&#x4E5F;&#x5177;&#x6709;&#x4E00;&#x4E2A;&#x7C7B;&#x4F3C;&#x4E8E;&#x6253;&#x5F00;&#x6587;&#x4EF6;&#x7684;&#x51FD;&#x6570;&#x8C03;&#x7528;&#xFF1A;Socket()&#xFF0C;&#x8BE5;&#x51FD;&#x6570;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x6574;&#x578B;&#x7684;Socket&#x63CF;&#x8FF0;&#x7B26;&#xFF0C;&#x968F;&#x540E;&#x7684;&#x8FDE;&#x63A5;&#x5EFA;&#x7ACB;&#x3001;&#x6570;&#x636E;&#x4F20;&#x8F93;&#x7B49;&#x64CD;&#x4F5C;&#x90FD;&#x662F;&#x901A;&#x8FC7;&#x8BE5;Socket&#x5B9E;&#x73B0;&#x7684;&#x3002;</p>
<p>&#x5E38;&#x7528;&#x7684;Socket&#x7C7B;&#x578B;&#x6709;&#x4E24;&#x79CD;&#xFF1A;&#x6D41;&#x5F0F;Socket&#xFF08;SOCK_STREAM&#xFF09;&#x548C;&#x6570;&#x636E;&#x62A5;&#x5F0F;Socket&#xFF08;SOCK_DGRAM&#xFF09;&#x3002;&#x6D41;&#x5F0F;&#x662F;&#x4E00;&#x79CD;&#x9762;&#x5411;&#x8FDE;&#x63A5;&#x7684;Socket&#xFF0C;&#x9488;&#x5BF9;&#x4E8E;&#x9762;&#x5411;&#x8FDE;&#x63A5;&#x7684;TCP&#x670D;&#x52A1;&#x5E94;&#x7528;&#xFF1B;&#x6570;&#x636E;&#x62A5;&#x5F0F;Socket&#x662F;&#x4E00;&#x79CD;&#x65E0;&#x8FDE;&#x63A5;&#x7684;Socket&#xFF0C;&#x5BF9;&#x5E94;&#x4E8E;&#x65E0;&#x8FDE;&#x63A5;&#x7684;UDP&#x670D;&#x52A1;&#x5E94;&#x7528;&#x3002;</p>
<h2 id="socket&#x5982;&#x4F55;&#x901A;&#x4FE1;">Socket&#x5982;&#x4F55;&#x901A;&#x4FE1;</h2>
<p>&#x7F51;&#x7EDC;&#x4E2D;&#x7684;&#x8FDB;&#x7A0B;&#x4E4B;&#x95F4;&#x5982;&#x4F55;&#x901A;&#x8FC7;Socket&#x901A;&#x4FE1;&#x5462;&#xFF1F;&#x9996;&#x8981;&#x89E3;&#x51B3;&#x7684;&#x95EE;&#x9898;&#x662F;&#x5982;&#x4F55;&#x552F;&#x4E00;&#x6807;&#x8BC6;&#x4E00;&#x4E2A;&#x8FDB;&#x7A0B;&#xFF0C;&#x5426;&#x5219;&#x901A;&#x4FE1;&#x65E0;&#x4ECE;&#x8C08;&#x8D77;&#xFF01;&#x5728;&#x672C;&#x5730;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x8FDB;&#x7A0B;PID&#x6765;&#x552F;&#x4E00;&#x6807;&#x8BC6;&#x4E00;&#x4E2A;&#x8FDB;&#x7A0B;&#xFF0C;&#x4F46;&#x662F;&#x5728;&#x7F51;&#x7EDC;&#x4E2D;&#x8FD9;&#x662F;&#x884C;&#x4E0D;&#x901A;&#x7684;&#x3002;&#x5176;&#x5B9E;TCP/IP&#x534F;&#x8BAE;&#x65CF;&#x5DF2;&#x7ECF;&#x5E2E;&#x6211;&#x4EEC;&#x89E3;&#x51B3;&#x4E86;&#x8FD9;&#x4E2A;&#x95EE;&#x9898;&#xFF0C;&#x7F51;&#x7EDC;&#x5C42;&#x7684;&#x201C;ip&#x5730;&#x5740;&#x201D;&#x53EF;&#x4EE5;&#x552F;&#x4E00;&#x6807;&#x8BC6;&#x7F51;&#x7EDC;&#x4E2D;&#x7684;&#x4E3B;&#x673A;&#xFF0C;&#x800C;&#x4F20;&#x8F93;&#x5C42;&#x7684;&#x201C;&#x534F;&#x8BAE;+&#x7AEF;&#x53E3;&#x201D;&#x53EF;&#x4EE5;&#x552F;&#x4E00;&#x6807;&#x8BC6;&#x4E3B;&#x673A;&#x4E2D;&#x7684;&#x5E94;&#x7528;&#x7A0B;&#x5E8F;&#xFF08;&#x8FDB;&#x7A0B;&#xFF09;&#x3002;&#x8FD9;&#x6837;&#x5229;&#x7528;&#x4E09;&#x5143;&#x7EC4;&#xFF08;ip&#x5730;&#x5740;&#xFF0C;&#x534F;&#x8BAE;&#xFF0C;&#x7AEF;&#x53E3;&#xFF09;&#x5C31;&#x53EF;&#x4EE5;&#x6807;&#x8BC6;&#x7F51;&#x7EDC;&#x7684;&#x8FDB;&#x7A0B;&#x4E86;&#xFF0C;&#x7F51;&#x7EDC;&#x4E2D;&#x9700;&#x8981;&#x4E92;&#x76F8;&#x901A;&#x4FE1;&#x7684;&#x8FDB;&#x7A0B;&#xFF0C;&#x5C31;&#x53EF;&#x4EE5;&#x5229;&#x7528;&#x8FD9;&#x4E2A;&#x6807;&#x5FD7;&#x5728;&#x4ED6;&#x4EEC;&#x4E4B;&#x95F4;&#x8FDB;&#x884C;&#x4EA4;&#x4E92;&#x3002;&#x8BF7;&#x770B;&#x4E0B;&#x9762;&#x8FD9;&#x4E2A;TCP/IP&#x534F;&#x8BAE;&#x7ED3;&#x6784;&#x56FE;</p>
<p><img src="images/8.1.socket.png?raw=true" alt=""></p>
<p>&#x56FE;8.1 &#x4E03;&#x5C42;&#x7F51;&#x7EDC;&#x534F;&#x8BAE;&#x56FE;</p>
<p>&#x4F7F;&#x7528;TCP/IP&#x534F;&#x8BAE;&#x7684;&#x5E94;&#x7528;&#x7A0B;&#x5E8F;&#x901A;&#x5E38;&#x91C7;&#x7528;&#x5E94;&#x7528;&#x7F16;&#x7A0B;&#x63A5;&#x53E3;&#xFF1A;UNIX BSD&#x7684;&#x5957;&#x63A5;&#x5B57;&#xFF08;socket&#xFF09;&#x548C;UNIX System V&#x7684;TLI&#xFF08;&#x5DF2;&#x7ECF;&#x88AB;&#x6DD8;&#x6C70;&#xFF09;&#xFF0C;&#x6765;&#x5B9E;&#x73B0;&#x7F51;&#x7EDC;&#x8FDB;&#x7A0B;&#x4E4B;&#x95F4;&#x7684;&#x901A;&#x4FE1;&#x3002;&#x5C31;&#x76EE;&#x524D;&#x800C;&#x8A00;&#xFF0C;&#x51E0;&#x4E4E;&#x6240;&#x6709;&#x7684;&#x5E94;&#x7528;&#x7A0B;&#x5E8F;&#x90FD;&#x662F;&#x91C7;&#x7528;socket&#xFF0C;&#x800C;&#x73B0;&#x5728;&#x53C8;&#x662F;&#x7F51;&#x7EDC;&#x65F6;&#x4EE3;&#xFF0C;&#x7F51;&#x7EDC;&#x4E2D;&#x8FDB;&#x7A0B;&#x901A;&#x4FE1;&#x662F;&#x65E0;&#x5904;&#x4E0D;&#x5728;&#xFF0C;&#x8FD9;&#x5C31;&#x662F;&#x4E3A;&#x4EC0;&#x4E48;&#x8BF4;&#x201C;&#x4E00;&#x5207;&#x7686;Socket&#x201D;&#x3002;</p>
<h2 id="socket&#x57FA;&#x7840;&#x77E5;&#x8BC6;">Socket&#x57FA;&#x7840;&#x77E5;&#x8BC6;</h2>
<p>&#x901A;&#x8FC7;&#x4E0A;&#x9762;&#x7684;&#x4ECB;&#x7ECD;&#x6211;&#x4EEC;&#x77E5;&#x9053;Socket&#x6709;&#x4E24;&#x79CD;&#xFF1A;TCP Socket&#x548C;UDP Socket&#xFF0C;TCP&#x548C;UDP&#x662F;&#x534F;&#x8BAE;&#xFF0C;&#x800C;&#x8981;&#x786E;&#x5B9A;&#x4E00;&#x4E2A;&#x8FDB;&#x7A0B;&#x7684;&#x9700;&#x8981;&#x4E09;&#x5143;&#x7EC4;&#xFF0C;&#x9700;&#x8981;IP&#x5730;&#x5740;&#x548C;&#x7AEF;&#x53E3;&#x3002;</p>
<h3 id="ipv4&#x5730;&#x5740;">IPv4&#x5730;&#x5740;</h3>
<p>&#x76EE;&#x524D;&#x7684;&#x5168;&#x7403;&#x56E0;&#x7279;&#x7F51;&#x6240;&#x91C7;&#x7528;&#x7684;&#x534F;&#x8BAE;&#x65CF;&#x662F;TCP/IP&#x534F;&#x8BAE;&#x3002;IP&#x662F;TCP/IP&#x534F;&#x8BAE;&#x4E2D;&#x7F51;&#x7EDC;&#x5C42;&#x7684;&#x534F;&#x8BAE;&#xFF0C;&#x662F;TCP/IP&#x534F;&#x8BAE;&#x65CF;&#x7684;&#x6838;&#x5FC3;&#x534F;&#x8BAE;&#x3002;&#x76EE;&#x524D;&#x4E3B;&#x8981;&#x91C7;&#x7528;&#x7684;IP&#x534F;&#x8BAE;&#x7684;&#x7248;&#x672C;&#x53F7;&#x662F;4(&#x7B80;&#x79F0;&#x4E3A;IPv4)&#xFF0C;&#x53D1;&#x5C55;&#x81F3;&#x4ECA;&#x5DF2;&#x7ECF;&#x4F7F;&#x7528;&#x4E86;30&#x591A;&#x5E74;&#x3002;</p>
<p>IPv4&#x7684;&#x5730;&#x5740;&#x4F4D;&#x6570;&#x4E3A;32&#x4F4D;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x6700;&#x591A;&#x6709;2&#x7684;32&#x6B21;&#x65B9;&#x7684;&#x7F51;&#x7EDC;&#x8BBE;&#x5907;&#x53EF;&#x4EE5;&#x8054;&#x5230;Internet&#x4E0A;&#x3002;&#x8FD1;&#x5341;&#x5E74;&#x6765;&#x7531;&#x4E8E;&#x4E92;&#x8054;&#x7F51;&#x7684;&#x84EC;&#x52C3;&#x53D1;&#x5C55;&#xFF0C;IP&#x4F4D;&#x5740;&#x7684;&#x9700;&#x6C42;&#x91CF;&#x6108;&#x6765;&#x6108;&#x5927;&#xFF0C;&#x4F7F;&#x5F97;IP&#x4F4D;&#x5740;&#x7684;&#x53D1;&#x653E;&#x6108;&#x8D8B;&#x7D27;&#x5F20;&#xFF0C;&#x524D;&#x4E00;&#x6BB5;&#x65F6;&#x95F4;&#xFF0C;&#x636E;&#x62A5;&#x9053;IPV4&#x7684;&#x5730;&#x5740;&#x5DF2;&#x7ECF;&#x53D1;&#x653E;&#x5B8C;&#x6BD5;&#xFF0C;&#x6211;&#x4EEC;&#x516C;&#x53F8;&#x76EE;&#x524D;&#x5F88;&#x591A;&#x670D;&#x52A1;&#x5668;&#x7684;IP&#x90FD;&#x662F;&#x4E00;&#x4E2A;&#x5B9D;&#x8D35;&#x7684;&#x8D44;&#x6E90;&#x3002;</p>
<p>&#x5730;&#x5740;&#x683C;&#x5F0F;&#x7C7B;&#x4F3C;&#x8FD9;&#x6837;&#xFF1A;127.0.0.1 172.122.121.111</p>
<h3 id="ipv6&#x5730;&#x5740;">IPv6&#x5730;&#x5740;</h3>
<p>IPv6&#x662F;&#x4E0B;&#x4E00;&#x7248;&#x672C;&#x7684;&#x4E92;&#x8054;&#x7F51;&#x534F;&#x8BAE;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x8BF4;&#x662F;&#x4E0B;&#x4E00;&#x4EE3;&#x4E92;&#x8054;&#x7F51;&#x7684;&#x534F;&#x8BAE;&#xFF0C;&#x5B83;&#x662F;&#x4E3A;&#x4E86;&#x89E3;&#x51B3;IPv4&#x5728;&#x5B9E;&#x65BD;&#x8FC7;&#x7A0B;&#x4E2D;&#x9047;&#x5230;&#x7684;&#x5404;&#x79CD;&#x95EE;&#x9898;&#x800C;&#x88AB;&#x63D0;&#x51FA;&#x7684;&#xFF0C;IPv6&#x91C7;&#x7528;128&#x4F4D;&#x5730;&#x5740;&#x957F;&#x5EA6;&#xFF0C;&#x51E0;&#x4E4E;&#x53EF;&#x4EE5;&#x4E0D;&#x53D7;&#x9650;&#x5236;&#x5730;&#x63D0;&#x4F9B;&#x5730;&#x5740;&#x3002;&#x6309;&#x4FDD;&#x5B88;&#x65B9;&#x6CD5;&#x4F30;&#x7B97;IPv6&#x5B9E;&#x9645;&#x53EF;&#x5206;&#x914D;&#x7684;&#x5730;&#x5740;&#xFF0C;&#x6574;&#x4E2A;&#x5730;&#x7403;&#x7684;&#x6BCF;&#x5E73;&#x65B9;&#x7C73;&#x9762;&#x79EF;&#x4E0A;&#x4ECD;&#x53EF;&#x5206;&#x914D;1000&#x591A;&#x4E2A;&#x5730;&#x5740;&#x3002;&#x5728;IPv6&#x7684;&#x8BBE;&#x8BA1;&#x8FC7;&#x7A0B;&#x4E2D;&#x9664;&#x4E86;&#x4E00;&#x52B3;&#x6C38;&#x9038;&#x5730;&#x89E3;&#x51B3;&#x4E86;&#x5730;&#x5740;&#x77ED;&#x7F3A;&#x95EE;&#x9898;&#x4EE5;&#x5916;&#xFF0C;&#x8FD8;&#x8003;&#x8651;&#x4E86;&#x5728;IPv4&#x4E2D;&#x89E3;&#x51B3;&#x4E0D;&#x597D;&#x7684;&#x5176;&#x5B83;&#x95EE;&#x9898;&#xFF0C;&#x4E3B;&#x8981;&#x6709;&#x7AEF;&#x5230;&#x7AEF;IP&#x8FDE;&#x63A5;&#x3001;&#x670D;&#x52A1;&#x8D28;&#x91CF;&#xFF08;QoS&#xFF09;&#x3001;&#x5B89;&#x5168;&#x6027;&#x3001;&#x591A;&#x64AD;&#x3001;&#x79FB;&#x52A8;&#x6027;&#x3001;&#x5373;&#x63D2;&#x5373;&#x7528;&#x7B49;&#x3002;</p>
<p>&#x5730;&#x5740;&#x683C;&#x5F0F;&#x7C7B;&#x4F3C;&#x8FD9;&#x6837;&#xFF1A;2002:c0e8:82e7:0:0:0:c0e8:82e7</p>
<h3 id="go&#x652F;&#x6301;&#x7684;ip&#x7C7B;&#x578B;">Go&#x652F;&#x6301;&#x7684;IP&#x7C7B;&#x578B;</h3>
<p>&#x5728;Go&#x7684;<code>net</code>&#x5305;&#x4E2D;&#x5B9A;&#x4E49;&#x4E86;&#x5F88;&#x591A;&#x7C7B;&#x578B;&#x3001;&#x51FD;&#x6570;&#x548C;&#x65B9;&#x6CD5;&#x7528;&#x6765;&#x7F51;&#x7EDC;&#x7F16;&#x7A0B;&#xFF0C;&#x5176;&#x4E2D;IP&#x7684;&#x5B9A;&#x4E49;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">type</span> IP []<span class="hljs-keyword">byte</span>
</code></pre>
<p>&#x5728;<code>net</code>&#x5305;&#x4E2D;&#x6709;&#x5F88;&#x591A;&#x51FD;&#x6570;&#x6765;&#x64CD;&#x4F5C;IP&#xFF0C;&#x4F46;&#x662F;&#x5176;&#x4E2D;&#x6BD4;&#x8F83;&#x6709;&#x7528;&#x7684;&#x4E5F;&#x5C31;&#x51E0;&#x4E2A;&#xFF0C;&#x5176;&#x4E2D;<code>ParseIP(s string) IP</code>&#x51FD;&#x6570;&#x4F1A;&#x628A;&#x4E00;&#x4E2A;IPv4&#x6216;&#x8005;IPv6&#x7684;&#x5730;&#x5740;&#x8F6C;&#x5316;&#x6210;IP&#x7C7B;&#x578B;&#xFF0C;&#x8BF7;&#x770B;&#x4E0B;&#x9762;&#x7684;&#x4F8B;&#x5B50;:</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">package</span> main
<span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;net&quot;</span>
    <span class="hljs-string">&quot;os&quot;</span>
    <span class="hljs-string">&quot;fmt&quot;</span>
)
<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">if</span> <span class="hljs-built_in">len</span>(os.Args) != <span class="hljs-number">2</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Usage: %s ip-addr\n&quot;</span>, os.Args[<span class="hljs-number">0</span>])
        os.Exit(<span class="hljs-number">1</span>)
    }
    name := os.Args[<span class="hljs-number">1</span>]
    addr := net.ParseIP(name)
    <span class="hljs-keyword">if</span> addr == <span class="hljs-literal">nil</span> {
        fmt.Println(<span class="hljs-string">&quot;Invalid address&quot;</span>)
    } <span class="hljs-keyword">else</span> {
        fmt.Println(<span class="hljs-string">&quot;The address is &quot;</span>, addr.String())
    }
    os.Exit(<span class="hljs-number">0</span>)
}
</code></pre>
<p>&#x6267;&#x884C;&#x4E4B;&#x540E;&#x4F60;&#x5C31;&#x4F1A;&#x53D1;&#x73B0;&#x53EA;&#x8981;&#x4F60;&#x8F93;&#x5165;&#x4E00;&#x4E2A;IP&#x5730;&#x5740;&#x5C31;&#x4F1A;&#x7ED9;&#x51FA;&#x76F8;&#x5E94;&#x7684;IP&#x683C;&#x5F0F;</p>
<h2 id="tcp-socket">TCP Socket</h2>
<p>&#x5F53;&#x6211;&#x4EEC;&#x77E5;&#x9053;&#x5982;&#x4F55;&#x901A;&#x8FC7;&#x7F51;&#x7EDC;&#x7AEF;&#x53E3;&#x8BBF;&#x95EE;&#x4E00;&#x4E2A;&#x670D;&#x52A1;&#x65F6;&#xFF0C;&#x90A3;&#x4E48;&#x6211;&#x4EEC;&#x80FD;&#x591F;&#x505A;&#x4EC0;&#x4E48;&#x5462;&#xFF1F;&#x4F5C;&#x4E3A;&#x5BA2;&#x6237;&#x7AEF;&#x6765;&#x8BF4;&#xFF0C;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x5411;&#x8FDC;&#x7AEF;&#x67D0;&#x53F0;&#x673A;&#x5668;&#x7684;&#x7684;&#x67D0;&#x4E2A;&#x7F51;&#x7EDC;&#x7AEF;&#x53E3;&#x53D1;&#x9001;&#x4E00;&#x4E2A;&#x8BF7;&#x6C42;&#xFF0C;&#x7136;&#x540E;&#x5F97;&#x5230;&#x5728;&#x673A;&#x5668;&#x7684;&#x6B64;&#x7AEF;&#x53E3;&#x4E0A;&#x76D1;&#x542C;&#x7684;&#x670D;&#x52A1;&#x53CD;&#x9988;&#x7684;&#x4FE1;&#x606F;&#x3002;&#x4F5C;&#x4E3A;&#x670D;&#x52A1;&#x7AEF;&#xFF0C;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x628A;&#x670D;&#x52A1;&#x7ED1;&#x5B9A;&#x5230;&#x67D0;&#x4E2A;&#x6307;&#x5B9A;&#x7AEF;&#x53E3;&#xFF0C;&#x5E76;&#x4E14;&#x5728;&#x6B64;&#x7AEF;&#x53E3;&#x4E0A;&#x76D1;&#x542C;&#xFF0C;&#x5F53;&#x6709;&#x5BA2;&#x6237;&#x7AEF;&#x6765;&#x8BBF;&#x95EE;&#x65F6;&#x80FD;&#x591F;&#x8BFB;&#x53D6;&#x4FE1;&#x606F;&#x5E76;&#x4E14;&#x5199;&#x5165;&#x53CD;&#x9988;&#x4FE1;&#x606F;&#x3002;</p>
<p>&#x5728;Go&#x8BED;&#x8A00;&#x7684;<code>net</code>&#x5305;&#x4E2D;&#x6709;&#x4E00;&#x4E2A;&#x7C7B;&#x578B;<code>TCPConn</code>&#xFF0C;&#x8FD9;&#x4E2A;&#x7C7B;&#x578B;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x4F5C;&#x4E3A;&#x5BA2;&#x6237;&#x7AEF;&#x548C;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x4EA4;&#x4E92;&#x7684;&#x901A;&#x9053;&#xFF0C;&#x4ED6;&#x6709;&#x4E24;&#x4E2A;&#x4E3B;&#x8981;&#x7684;&#x51FD;&#x6570;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">func</span> (c *TCPConn) Write(b []<span class="hljs-keyword">byte</span>) (<span class="hljs-keyword">int</span>, error)
<span class="hljs-keyword">func</span> (c *TCPConn) Read(b []<span class="hljs-keyword">byte</span>) (<span class="hljs-keyword">int</span>, error)
</code></pre>
<p><code>TCPConn</code>&#x53EF;&#x4EE5;&#x7528;&#x5728;&#x5BA2;&#x6237;&#x7AEF;&#x548C;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x6765;&#x8BFB;&#x5199;&#x6570;&#x636E;&#x3002;</p>
<p>&#x8FD8;&#x6709;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x77E5;&#x9053;&#x4E00;&#x4E2A;<code>TCPAddr</code>&#x7C7B;&#x578B;&#xFF0C;&#x4ED6;&#x8868;&#x793A;&#x4E00;&#x4E2A;TCP&#x7684;&#x5730;&#x5740;&#x4FE1;&#x606F;&#xFF0C;&#x4ED6;&#x7684;&#x5B9A;&#x4E49;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">type</span> TCPAddr <span class="hljs-keyword">struct</span> {
    IP IP
    Port <span class="hljs-keyword">int</span>
    Zone <span class="hljs-keyword">string</span> <span class="hljs-comment">// IPv6 scoped addressing zone</span>
}
</code></pre>
<p>&#x5728;Go&#x8BED;&#x8A00;&#x4E2D;&#x901A;&#x8FC7;<code>ResolveTCPAddr</code>&#x83B7;&#x53D6;&#x4E00;&#x4E2A;<code>TCPAddr</code></p>
<pre><code class="lang-Go">
<span class="hljs-keyword">func</span> ResolveTCPAddr(net, addr <span class="hljs-keyword">string</span>) (*TCPAddr, os.Error)
</code></pre>
<ul>
<li>net&#x53C2;&#x6570;&#x662F;&quot;tcp4&quot;&#x3001;&quot;tcp6&quot;&#x3001;&quot;tcp&quot;&#x4E2D;&#x7684;&#x4EFB;&#x610F;&#x4E00;&#x4E2A;&#xFF0C;&#x5206;&#x522B;&#x8868;&#x793A;TCP(IPv4-only), TCP(IPv6-only)&#x6216;&#x8005;TCP(IPv4, IPv6&#x7684;&#x4EFB;&#x610F;&#x4E00;&#x4E2A;)&#x3002;</li>
<li>addr&#x8868;&#x793A;&#x57DF;&#x540D;&#x6216;&#x8005;IP&#x5730;&#x5740;&#xFF0C;&#x4F8B;&#x5982;&quot;www.google.com:80&quot; &#x6216;&#x8005;&quot;127.0.0.1:22&quot;&#x3002;</li>
</ul>
<h3 id="tcp-client">TCP client</h3>
<p>Go&#x8BED;&#x8A00;&#x4E2D;&#x901A;&#x8FC7;net&#x5305;&#x4E2D;&#x7684;<code>DialTCP</code>&#x51FD;&#x6570;&#x6765;&#x5EFA;&#x7ACB;&#x4E00;&#x4E2A;TCP&#x8FDE;&#x63A5;&#xFF0C;&#x5E76;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;<code>TCPConn</code>&#x7C7B;&#x578B;&#x7684;&#x5BF9;&#x8C61;&#xFF0C;&#x5F53;&#x8FDE;&#x63A5;&#x5EFA;&#x7ACB;&#x65F6;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x4E5F;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x540C;&#x7C7B;&#x578B;&#x7684;&#x5BF9;&#x8C61;&#xFF0C;&#x6B64;&#x65F6;&#x5BA2;&#x6237;&#x7AEF;&#x548C;&#x670D;&#x52A1;&#x5668;&#x6BB5;&#x901A;&#x8FC7;&#x5404;&#x81EA;&#x62E5;&#x6709;&#x7684;<code>TCPConn</code>&#x5BF9;&#x8C61;&#x6765;&#x8FDB;&#x884C;&#x6570;&#x636E;&#x4EA4;&#x6362;&#x3002;&#x4E00;&#x822C;&#x800C;&#x8A00;&#xFF0C;&#x5BA2;&#x6237;&#x7AEF;&#x901A;&#x8FC7;<code>TCPConn</code>&#x5BF9;&#x8C61;&#x5C06;&#x8BF7;&#x6C42;&#x4FE1;&#x606F;&#x53D1;&#x9001;&#x5230;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#xFF0C;&#x8BFB;&#x53D6;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x54CD;&#x5E94;&#x7684;&#x4FE1;&#x606F;&#x3002;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x8BFB;&#x53D6;&#x5E76;&#x89E3;&#x6790;&#x6765;&#x81EA;&#x5BA2;&#x6237;&#x7AEF;&#x7684;&#x8BF7;&#x6C42;&#xFF0C;&#x5E76;&#x8FD4;&#x56DE;&#x5E94;&#x7B54;&#x4FE1;&#x606F;&#xFF0C;&#x8FD9;&#x4E2A;&#x8FDE;&#x63A5;&#x53EA;&#x6709;&#x5F53;&#x4EFB;&#x4E00;&#x7AEF;&#x5173;&#x95ED;&#x4E86;&#x8FDE;&#x63A5;&#x4E4B;&#x540E;&#x624D;&#x5931;&#x6548;&#xFF0C;&#x4E0D;&#x7136;&#x8FD9;&#x8FDE;&#x63A5;&#x53EF;&#x4EE5;&#x4E00;&#x76F4;&#x5728;&#x4F7F;&#x7528;&#x3002;&#x5EFA;&#x7ACB;&#x8FDE;&#x63A5;&#x7684;&#x51FD;&#x6570;&#x5B9A;&#x4E49;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">func</span> DialTCP(network <span class="hljs-keyword">string</span>, laddr, raddr *TCPAddr) (*TCPConn, error)
</code></pre>
<ul>
<li>net&#x53C2;&#x6570;&#x662F;&quot;tcp4&quot;&#x3001;&quot;tcp6&quot;&#x3001;&quot;tcp&quot;&#x4E2D;&#x7684;&#x4EFB;&#x610F;&#x4E00;&#x4E2A;&#xFF0C;&#x5206;&#x522B;&#x8868;&#x793A;TCP(IPv4-only)&#x3001;TCP(IPv6-only)&#x6216;&#x8005;TCP(IPv4,IPv6&#x7684;&#x4EFB;&#x610F;&#x4E00;&#x4E2A;)</li>
<li>laddr&#x8868;&#x793A;&#x672C;&#x673A;&#x5730;&#x5740;&#xFF0C;&#x4E00;&#x822C;&#x8BBE;&#x7F6E;&#x4E3A;nil</li>
<li>raddr&#x8868;&#x793A;&#x8FDC;&#x7A0B;&#x7684;&#x670D;&#x52A1;&#x5730;&#x5740;</li>
</ul>
<p>&#x63A5;&#x4E0B;&#x6765;&#x6211;&#x4EEC;&#x5199;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684;&#x4F8B;&#x5B50;&#xFF0C;&#x6A21;&#x62DF;&#x4E00;&#x4E2A;&#x57FA;&#x4E8E;HTTP&#x534F;&#x8BAE;&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#x8BF7;&#x6C42;&#x53BB;&#x8FDE;&#x63A5;&#x4E00;&#x4E2A;Web&#x670D;&#x52A1;&#x7AEF;&#x3002;&#x6211;&#x4EEC;&#x8981;&#x5199;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684;http&#x8BF7;&#x6C42;&#x5934;&#xFF0C;&#x683C;&#x5F0F;&#x7C7B;&#x4F3C;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code>&quot;HEAD / HTTP/1.0\r\n\r\n&quot;
</code></pre><p>&#x4ECE;&#x670D;&#x52A1;&#x7AEF;&#x63A5;&#x6536;&#x5230;&#x7684;&#x54CD;&#x5E94;&#x4FE1;&#x606F;&#x683C;&#x5F0F;&#x53EF;&#x80FD;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-Go">
HTTP/<span class="hljs-number">1.0</span> <span class="hljs-number">200</span> OK
ETag: <span class="hljs-string">&quot;-9985996&quot;</span>
Last-Modified: Thu, <span class="hljs-number">25</span> Mar <span class="hljs-number">2010</span> <span class="hljs-number">17</span>:<span class="hljs-number">51</span>:<span class="hljs-number">10</span> GMT
Content-Length: <span class="hljs-number">18074</span>
Connection: <span class="hljs-built_in">close</span>
Date: Sat, <span class="hljs-number">28</span> Aug <span class="hljs-number">2010</span> <span class="hljs-number">00</span>:<span class="hljs-number">43</span>:<span class="hljs-number">48</span> GMT
Server: lighttpd/<span class="hljs-number">1.4</span><span class="hljs-number">.23</span>
</code></pre>
<p>&#x6211;&#x4EEC;&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#x6240;&#x793A;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">package</span> main

<span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;fmt&quot;</span>
    <span class="hljs-string">&quot;io/ioutil&quot;</span>
    <span class="hljs-string">&quot;net&quot;</span>
    <span class="hljs-string">&quot;os&quot;</span>
)

<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">if</span> <span class="hljs-built_in">len</span>(os.Args) != <span class="hljs-number">2</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Usage: %s host:port &quot;</span>, os.Args[<span class="hljs-number">0</span>])
        os.Exit(<span class="hljs-number">1</span>)
    }
    service := os.Args[<span class="hljs-number">1</span>]
    tcpAddr, err := net.ResolveTCPAddr(<span class="hljs-string">&quot;tcp4&quot;</span>, service)
    checkError(err)
    conn, err := net.DialTCP(<span class="hljs-string">&quot;tcp&quot;</span>, <span class="hljs-literal">nil</span>, tcpAddr)
    checkError(err)
    _, err = conn.Write([]<span class="hljs-keyword">byte</span>(<span class="hljs-string">&quot;HEAD / HTTP/1.0\r\n\r\n&quot;</span>))
    checkError(err)
    result, err := ioutil.ReadAll(conn)
    checkError(err)
    fmt.Println(<span class="hljs-keyword">string</span>(result))
    os.Exit(<span class="hljs-number">0</span>)
}
<span class="hljs-keyword">func</span> checkError(err error) {
    <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Fatal error: %s&quot;</span>, err.Error())
        os.Exit(<span class="hljs-number">1</span>)
    }
}
</code></pre>
<p>&#x901A;&#x8FC7;&#x4E0A;&#x9762;&#x7684;&#x4EE3;&#x7801;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x51FA;&#xFF1A;&#x9996;&#x5148;&#x7A0B;&#x5E8F;&#x5C06;&#x7528;&#x6237;&#x7684;&#x8F93;&#x5165;&#x4F5C;&#x4E3A;&#x53C2;&#x6570;<code>service</code>&#x4F20;&#x5165;<code>net.ResolveTCPAddr</code>&#x83B7;&#x53D6;&#x4E00;&#x4E2A;tcpAddr,&#x7136;&#x540E;&#x628A;tcpAddr&#x4F20;&#x5165;DialTCP&#x540E;&#x521B;&#x5EFA;&#x4E86;&#x4E00;&#x4E2A;TCP&#x8FDE;&#x63A5;<code>conn</code>&#xFF0C;&#x901A;&#x8FC7;<code>conn</code>&#x6765;&#x53D1;&#x9001;&#x8BF7;&#x6C42;&#x4FE1;&#x606F;&#xFF0C;&#x6700;&#x540E;&#x901A;&#x8FC7;<code>ioutil.ReadAll</code>&#x4ECE;<code>conn</code>&#x4E2D;&#x8BFB;&#x53D6;&#x5168;&#x90E8;&#x7684;&#x6587;&#x672C;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x670D;&#x52A1;&#x7AEF;&#x54CD;&#x5E94;&#x53CD;&#x9988;&#x7684;&#x4FE1;&#x606F;&#x3002;</p>
<h3 id="tcp-server">TCP server</h3>
<p>&#x4E0A;&#x9762;&#x6211;&#x4EEC;&#x7F16;&#x5199;&#x4E86;&#x4E00;&#x4E2A;TCP&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#x7A0B;&#x5E8F;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;net&#x5305;&#x6765;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x7A0B;&#x5E8F;&#xFF0C;&#x5728;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x7ED1;&#x5B9A;&#x670D;&#x52A1;&#x5230;&#x6307;&#x5B9A;&#x7684;&#x975E;&#x6FC0;&#x6D3B;&#x7AEF;&#x53E3;&#xFF0C;&#x5E76;&#x76D1;&#x542C;&#x6B64;&#x7AEF;&#x53E3;&#xFF0C;&#x5F53;&#x6709;&#x5BA2;&#x6237;&#x7AEF;&#x8BF7;&#x6C42;&#x5230;&#x8FBE;&#x7684;&#x65F6;&#x5019;&#x53EF;&#x4EE5;&#x63A5;&#x6536;&#x5230;&#x6765;&#x81EA;&#x5BA2;&#x6237;&#x7AEF;&#x8FDE;&#x63A5;&#x7684;&#x8BF7;&#x6C42;&#x3002;net&#x5305;&#x4E2D;&#x6709;&#x76F8;&#x5E94;&#x529F;&#x80FD;&#x7684;&#x51FD;&#x6570;&#xFF0C;&#x51FD;&#x6570;&#x5B9A;&#x4E49;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">func</span> ListenTCP(network <span class="hljs-keyword">string</span>, laddr *TCPAddr) (*TCPListener, error)
<span class="hljs-keyword">func</span> (l *TCPListener) Accept() (Conn, error)
</code></pre>
<p>&#x53C2;&#x6570;&#x8BF4;&#x660E;&#x540C;DialTCP&#x7684;&#x53C2;&#x6570;&#x4E00;&#x6837;&#x3002;&#x4E0B;&#x9762;&#x6211;&#x4EEC;&#x5B9E;&#x73B0;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684;&#x65F6;&#x95F4;&#x540C;&#x6B65;&#x670D;&#x52A1;&#xFF0C;&#x76D1;&#x542C;7777&#x7AEF;&#x53E3;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">package</span> main

<span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;fmt&quot;</span>
    <span class="hljs-string">&quot;net&quot;</span>
    <span class="hljs-string">&quot;os&quot;</span>
    <span class="hljs-string">&quot;time&quot;</span>
)

<span class="hljs-keyword">func</span> main() {
    service := <span class="hljs-string">&quot;:7777&quot;</span>
    tcpAddr, err := net.ResolveTCPAddr(<span class="hljs-string">&quot;tcp4&quot;</span>, service)
    checkError(err)
    listener, err := net.ListenTCP(<span class="hljs-string">&quot;tcp&quot;</span>, tcpAddr)
    checkError(err)
    <span class="hljs-keyword">for</span> {
        conn, err := listener.Accept()
        <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
            <span class="hljs-keyword">continue</span>
        }
        daytime := time.Now().String()
        conn.Write([]<span class="hljs-keyword">byte</span>(daytime)) <span class="hljs-comment">// don&apos;t care about return value</span>
        conn.Close()                <span class="hljs-comment">// we&apos;re finished with this client</span>
    }
}
<span class="hljs-keyword">func</span> checkError(err error) {
    <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Fatal error: %s&quot;</span>, err.Error())
        os.Exit(<span class="hljs-number">1</span>)
    }
}
</code></pre>
<p>&#x4E0A;&#x9762;&#x7684;&#x670D;&#x52A1;&#x8DD1;&#x8D77;&#x6765;&#x4E4B;&#x540E;&#xFF0C;&#x5B83;&#x5C06;&#x4F1A;&#x4E00;&#x76F4;&#x5728;&#x90A3;&#x91CC;&#x7B49;&#x5F85;&#xFF0C;&#x76F4;&#x5230;&#x6709;&#x65B0;&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#x8BF7;&#x6C42;&#x5230;&#x8FBE;&#x3002;&#x5F53;&#x6709;&#x65B0;&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#x8BF7;&#x6C42;&#x5230;&#x8FBE;&#x5E76;&#x540C;&#x610F;&#x63A5;&#x53D7;<code>Accept</code>&#x8BE5;&#x8BF7;&#x6C42;&#x7684;&#x65F6;&#x5019;&#x4ED6;&#x4F1A;&#x53CD;&#x9988;&#x5F53;&#x524D;&#x7684;&#x65F6;&#x95F4;&#x4FE1;&#x606F;&#x3002;&#x503C;&#x5F97;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;&#x5728;&#x4EE3;&#x7801;&#x4E2D;<code>for</code>&#x5FAA;&#x73AF;&#x91CC;&#xFF0C;&#x5F53;&#x6709;&#x9519;&#x8BEF;&#x53D1;&#x751F;&#x65F6;&#xFF0C;&#x76F4;&#x63A5;continue&#x800C;&#x4E0D;&#x662F;&#x9000;&#x51FA;&#xFF0C;&#x662F;&#x56E0;&#x4E3A;&#x5728;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x8DD1;&#x4EE3;&#x7801;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x5F53;&#x6709;&#x9519;&#x8BEF;&#x53D1;&#x751F;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#x6700;&#x597D;&#x662F;&#x7531;&#x670D;&#x52A1;&#x7AEF;&#x8BB0;&#x5F55;&#x9519;&#x8BEF;&#xFF0C;&#x7136;&#x540E;&#x5F53;&#x524D;&#x8FDE;&#x63A5;&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#x76F4;&#x63A5;&#x62A5;&#x9519;&#x800C;&#x9000;&#x51FA;&#xFF0C;&#x4ECE;&#x800C;&#x4E0D;&#x4F1A;&#x5F71;&#x54CD;&#x5230;&#x5F53;&#x524D;&#x670D;&#x52A1;&#x7AEF;&#x8FD0;&#x884C;&#x7684;&#x6574;&#x4E2A;&#x670D;&#x52A1;&#x3002;</p>
<p>&#x4E0A;&#x9762;&#x7684;&#x4EE3;&#x7801;&#x6709;&#x4E2A;&#x7F3A;&#x70B9;&#xFF0C;&#x6267;&#x884C;&#x7684;&#x65F6;&#x5019;&#x662F;&#x5355;&#x4EFB;&#x52A1;&#x7684;&#xFF0C;&#x4E0D;&#x80FD;&#x540C;&#x65F6;&#x63A5;&#x6536;&#x591A;&#x4E2A;&#x8BF7;&#x6C42;&#xFF0C;&#x90A3;&#x4E48;&#x8BE5;&#x5982;&#x4F55;&#x6539;&#x9020;&#x4EE5;&#x4F7F;&#x5B83;&#x652F;&#x6301;&#x591A;&#x5E76;&#x53D1;&#x5462;&#xFF1F;Go&#x91CC;&#x9762;&#x6709;&#x4E00;&#x4E2A;goroutine&#x673A;&#x5236;&#xFF0C;&#x8BF7;&#x770B;&#x4E0B;&#x9762;&#x6539;&#x9020;&#x540E;&#x7684;&#x4EE3;&#x7801;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">package</span> main

<span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;fmt&quot;</span>
    <span class="hljs-string">&quot;net&quot;</span>
    <span class="hljs-string">&quot;os&quot;</span>
    <span class="hljs-string">&quot;time&quot;</span>
)

<span class="hljs-keyword">func</span> main() {
    service := <span class="hljs-string">&quot;:1200&quot;</span>
    tcpAddr, err := net.ResolveTCPAddr(<span class="hljs-string">&quot;tcp4&quot;</span>, service)
    checkError(err)
    listener, err := net.ListenTCP(<span class="hljs-string">&quot;tcp&quot;</span>, tcpAddr)
    checkError(err)
    <span class="hljs-keyword">for</span> {
        conn, err := listener.Accept()
        <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
            <span class="hljs-keyword">continue</span>
        }
        <span class="hljs-keyword">go</span> handleClient(conn)
    }
}

<span class="hljs-keyword">func</span> handleClient(conn net.Conn) {
    <span class="hljs-keyword">defer</span> conn.Close()
    daytime := time.Now().String()
    conn.Write([]<span class="hljs-keyword">byte</span>(daytime)) <span class="hljs-comment">// don&apos;t care about return value</span>
    <span class="hljs-comment">// we&apos;re finished with this client</span>
}
<span class="hljs-keyword">func</span> checkError(err error) {
    <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Fatal error: %s&quot;</span>, err.Error())
        os.Exit(<span class="hljs-number">1</span>)
    }
}
</code></pre>
<p>&#x901A;&#x8FC7;&#x628A;&#x4E1A;&#x52A1;&#x5904;&#x7406;&#x5206;&#x79BB;&#x5230;&#x51FD;&#x6570;<code>handleClient</code>&#xFF0C;&#x6211;&#x4EEC;&#x5C31;&#x53EF;&#x4EE5;&#x8FDB;&#x4E00;&#x6B65;&#x5730;&#x5B9E;&#x73B0;&#x591A;&#x5E76;&#x53D1;&#x6267;&#x884C;&#x4E86;&#x3002;&#x770B;&#x4E0A;&#x53BB;&#x662F;&#x4E0D;&#x662F;&#x5F88;&#x5E05;&#xFF0C;&#x589E;&#x52A0;<code>go</code>&#x5173;&#x952E;&#x8BCD;&#x5C31;&#x5B9E;&#x73B0;&#x4E86;&#x670D;&#x52A1;&#x7AEF;&#x7684;&#x591A;&#x5E76;&#x53D1;&#xFF0C;&#x4ECE;&#x8FD9;&#x4E2A;&#x5C0F;&#x4F8B;&#x5B50;&#x4E5F;&#x53EF;&#x4EE5;&#x770B;&#x51FA;goroutine&#x7684;&#x5F3A;&#x5927;&#x4E4B;&#x5904;&#x3002;</p>
<p>&#x6709;&#x7684;&#x670B;&#x53CB;&#x53EF;&#x80FD;&#x8981;&#x95EE;&#xFF1A;&#x8FD9;&#x4E2A;&#x670D;&#x52A1;&#x7AEF;&#x6CA1;&#x6709;&#x5904;&#x7406;&#x5BA2;&#x6237;&#x7AEF;&#x5B9E;&#x9645;&#x8BF7;&#x6C42;&#x7684;&#x5185;&#x5BB9;&#x3002;&#x5982;&#x679C;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x901A;&#x8FC7;&#x4ECE;&#x5BA2;&#x6237;&#x7AEF;&#x53D1;&#x9001;&#x4E0D;&#x540C;&#x7684;&#x8BF7;&#x6C42;&#x6765;&#x83B7;&#x53D6;&#x4E0D;&#x540C;&#x7684;&#x65F6;&#x95F4;&#x683C;&#x5F0F;&#xFF0C;&#x800C;&#x4E14;&#x9700;&#x8981;&#x4E00;&#x4E2A;&#x957F;&#x8FDE;&#x63A5;&#xFF0C;&#x8BE5;&#x600E;&#x4E48;&#x505A;&#x5462;&#xFF1F;&#x8BF7;&#x770B;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">package</span> main

<span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;fmt&quot;</span>
    <span class="hljs-string">&quot;net&quot;</span>
    <span class="hljs-string">&quot;os&quot;</span>
    <span class="hljs-string">&quot;time&quot;</span>
    <span class="hljs-string">&quot;strconv&quot;</span>
    <span class="hljs-string">&quot;strings&quot;</span>
)

<span class="hljs-keyword">func</span> main() {
    service := <span class="hljs-string">&quot;:1200&quot;</span>
    tcpAddr, err := net.ResolveTCPAddr(<span class="hljs-string">&quot;tcp4&quot;</span>, service)
    checkError(err)
    listener, err := net.ListenTCP(<span class="hljs-string">&quot;tcp&quot;</span>, tcpAddr)
    checkError(err)
    <span class="hljs-keyword">for</span> {
        conn, err := listener.Accept()
        <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
            <span class="hljs-keyword">continue</span>
        }
        <span class="hljs-keyword">go</span> handleClient(conn)
    }
}

<span class="hljs-keyword">func</span> handleClient(conn net.Conn) {
    conn.SetReadDeadline(time.Now().Add(<span class="hljs-number">2</span> * time.Minute)) <span class="hljs-comment">// set 2 minutes timeout</span>
    request := <span class="hljs-built_in">make</span>([]<span class="hljs-keyword">byte</span>, <span class="hljs-number">128</span>) <span class="hljs-comment">// set maxium request length to 128B to prevent flood attack</span>
    <span class="hljs-keyword">defer</span> conn.Close()  <span class="hljs-comment">// close connection before exit</span>
    <span class="hljs-keyword">for</span> {
        read_len, err := conn.Read(request)

        <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
            fmt.Println(err)
            <span class="hljs-keyword">break</span>
        }

            <span class="hljs-keyword">if</span> read_len == <span class="hljs-number">0</span> {
                <span class="hljs-keyword">break</span> <span class="hljs-comment">// connection already closed by client</span>
            } <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> strings.TrimSpace(<span class="hljs-keyword">string</span>(request[:read_len])) == <span class="hljs-string">&quot;timestamp&quot;</span> {
                daytime := strconv.FormatInt(time.Now().Unix(), <span class="hljs-number">10</span>)
                conn.Write([]<span class="hljs-keyword">byte</span>(daytime))
            } <span class="hljs-keyword">else</span> {
                daytime := time.Now().String()
                conn.Write([]<span class="hljs-keyword">byte</span>(daytime))
            }

            request = <span class="hljs-built_in">make</span>([]<span class="hljs-keyword">byte</span>, <span class="hljs-number">128</span>) <span class="hljs-comment">// clear last read content</span>
    }
}

<span class="hljs-keyword">func</span> checkError(err error) {
    <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Fatal error: %s&quot;</span>, err.Error())
        os.Exit(<span class="hljs-number">1</span>)
    }
}
</code></pre>
<p>&#x5728;&#x4E0A;&#x9762;&#x8FD9;&#x4E2A;&#x4F8B;&#x5B50;&#x4E2D;&#xFF0C;&#x6211;&#x4EEC;&#x4F7F;&#x7528;<code>conn.Read()</code>&#x4E0D;&#x65AD;&#x8BFB;&#x53D6;&#x5BA2;&#x6237;&#x7AEF;&#x53D1;&#x6765;&#x7684;&#x8BF7;&#x6C42;&#x3002;&#x7531;&#x4E8E;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x4FDD;&#x6301;&#x4E0E;&#x5BA2;&#x6237;&#x7AEF;&#x7684;&#x957F;&#x8FDE;&#x63A5;&#xFF0C;&#x6240;&#x4EE5;&#x4E0D;&#x80FD;&#x5728;&#x8BFB;&#x53D6;&#x5B8C;&#x4E00;&#x6B21;&#x8BF7;&#x6C42;&#x540E;&#x5C31;&#x5173;&#x95ED;&#x8FDE;&#x63A5;&#x3002;&#x7531;&#x4E8E;<code>conn.SetReadDeadline()</code>&#x8BBE;&#x7F6E;&#x4E86;&#x8D85;&#x65F6;&#xFF0C;&#x5F53;&#x4E00;&#x5B9A;&#x65F6;&#x95F4;&#x5185;&#x5BA2;&#x6237;&#x7AEF;&#x65E0;&#x8BF7;&#x6C42;&#x53D1;&#x9001;&#xFF0C;<code>conn</code>&#x4FBF;&#x4F1A;&#x81EA;&#x52A8;&#x5173;&#x95ED;&#xFF0C;&#x4E0B;&#x9762;&#x7684;for&#x5FAA;&#x73AF;&#x5373;&#x4F1A;&#x56E0;&#x4E3A;&#x8FDE;&#x63A5;&#x5DF2;&#x5173;&#x95ED;&#x800C;&#x8DF3;&#x51FA;&#x3002;&#x9700;&#x8981;&#x6CE8;&#x610F;&#x7684;&#x662F;&#xFF0C;<code>request</code>&#x5728;&#x521B;&#x5EFA;&#x65F6;&#x9700;&#x8981;&#x6307;&#x5B9A;&#x4E00;&#x4E2A;&#x6700;&#x5927;&#x957F;&#x5EA6;&#x4EE5;&#x9632;&#x6B62;flood attack&#xFF1B;&#x6BCF;&#x6B21;&#x8BFB;&#x53D6;&#x5230;&#x8BF7;&#x6C42;&#x5904;&#x7406;&#x5B8C;&#x6BD5;&#x540E;&#xFF0C;&#x9700;&#x8981;&#x6E05;&#x7406;request&#xFF0C;&#x56E0;&#x4E3A;<code>conn.Read()</code>&#x4F1A;&#x5C06;&#x65B0;&#x8BFB;&#x53D6;&#x5230;&#x7684;&#x5185;&#x5BB9;append&#x5230;&#x539F;&#x5185;&#x5BB9;&#x4E4B;&#x540E;&#x3002;</p>
<h3 id="&#x63A7;&#x5236;tcp&#x8FDE;&#x63A5;">&#x63A7;&#x5236;TCP&#x8FDE;&#x63A5;</h3>
<p>TCP&#x6709;&#x5F88;&#x591A;&#x8FDE;&#x63A5;&#x63A7;&#x5236;&#x51FD;&#x6570;&#xFF0C;&#x6211;&#x4EEC;&#x5E73;&#x5E38;&#x7528;&#x5230;&#x6BD4;&#x8F83;&#x591A;&#x7684;&#x6709;&#x5982;&#x4E0B;&#x51E0;&#x4E2A;&#x51FD;&#x6570;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">func</span> DialTimeout(net, addr <span class="hljs-keyword">string</span>, timeout time.Duration) (Conn, error)
</code></pre>
<p>&#x8BBE;&#x7F6E;&#x5EFA;&#x7ACB;&#x8FDE;&#x63A5;&#x7684;&#x8D85;&#x65F6;&#x65F6;&#x95F4;&#xFF0C;&#x5BA2;&#x6237;&#x7AEF;&#x548C;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x90FD;&#x9002;&#x7528;&#xFF0C;&#x5F53;&#x8D85;&#x8FC7;&#x8BBE;&#x7F6E;&#x65F6;&#x95F4;&#x65F6;&#xFF0C;&#x8FDE;&#x63A5;&#x81EA;&#x52A8;&#x5173;&#x95ED;&#x3002;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">func</span> (c *TCPConn) SetReadDeadline(t time.Time) error
<span class="hljs-keyword">func</span> (c *TCPConn) SetWriteDeadline(t time.Time) error
</code></pre>
<p>&#x7528;&#x6765;&#x8BBE;&#x7F6E;&#x5199;&#x5165;/&#x8BFB;&#x53D6;&#x4E00;&#x4E2A;&#x8FDE;&#x63A5;&#x7684;&#x8D85;&#x65F6;&#x65F6;&#x95F4;&#x3002;&#x5F53;&#x8D85;&#x8FC7;&#x8BBE;&#x7F6E;&#x65F6;&#x95F4;&#x65F6;&#xFF0C;&#x8FDE;&#x63A5;&#x81EA;&#x52A8;&#x5173;&#x95ED;&#x3002;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">func</span> (c *TCPConn) SetKeepAlive(keepalive <span class="hljs-keyword">bool</span>) os.Error
</code></pre>
<p>&#x8BBE;&#x7F6E;keepAlive&#x5C5E;&#x6027;&#xFF0C;&#x662F;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x5C42;&#x5728;tcp&#x4E0A;&#x6CA1;&#x6709;&#x6570;&#x636E;&#x548C;ACK&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x4F1A;&#x95F4;&#x9694;&#x6027;&#x7684;&#x53D1;&#x9001;keepalive&#x5305;&#xFF0C;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x8BE5;&#x5305;&#x6765;&#x5224;&#x65AD;&#x4E00;&#x4E2A;tcp&#x8FDE;&#x63A5;&#x662F;&#x5426;&#x5DF2;&#x7ECF;&#x65AD;&#x5F00;&#xFF0C;&#x5728;windows&#x4E0A;&#x9ED8;&#x8BA4;2&#x4E2A;&#x5C0F;&#x65F6;&#x6CA1;&#x6709;&#x6536;&#x5230;&#x6570;&#x636E;&#x548C;keepalive&#x5305;&#x7684;&#x65F6;&#x5019;&#x4EBA;&#x4E3A;tcp&#x8FDE;&#x63A5;&#x5DF2;&#x7ECF;&#x65AD;&#x5F00;&#xFF0C;&#x8FD9;&#x4E2A;&#x529F;&#x80FD;&#x548C;&#x6211;&#x4EEC;&#x901A;&#x5E38;&#x5728;&#x5E94;&#x7528;&#x5C42;&#x52A0;&#x7684;&#x5FC3;&#x8DF3;&#x5305;&#x7684;&#x529F;&#x80FD;&#x7C7B;&#x4F3C;&#x3002;</p>
<p>&#x66F4;&#x591A;&#x7684;&#x5185;&#x5BB9;&#x8BF7;&#x67E5;&#x770B;<code>net</code>&#x5305;&#x7684;&#x6587;&#x6863;&#x3002;</p>
<h2 id="udp-socket">UDP Socket</h2>
<p>Go&#x8BED;&#x8A00;&#x5305;&#x4E2D;&#x5904;&#x7406;UDP Socket&#x548C;TCP Socket&#x4E0D;&#x540C;&#x7684;&#x5730;&#x65B9;&#x5C31;&#x662F;&#x5728;&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x5904;&#x7406;&#x591A;&#x4E2A;&#x5BA2;&#x6237;&#x7AEF;&#x8BF7;&#x6C42;&#x6570;&#x636E;&#x5305;&#x7684;&#x65B9;&#x5F0F;&#x4E0D;&#x540C;,UDP&#x7F3A;&#x5C11;&#x4E86;&#x5BF9;&#x5BA2;&#x6237;&#x7AEF;&#x8FDE;&#x63A5;&#x8BF7;&#x6C42;&#x7684;Accept&#x51FD;&#x6570;&#x3002;&#x5176;&#x4ED6;&#x57FA;&#x672C;&#x51E0;&#x4E4E;&#x4E00;&#x6A21;&#x4E00;&#x6837;&#xFF0C;&#x53EA;&#x6709;TCP&#x6362;&#x6210;&#x4E86;UDP&#x800C;&#x5DF2;&#x3002;UDP&#x7684;&#x51E0;&#x4E2A;&#x4E3B;&#x8981;&#x51FD;&#x6570;&#x5982;&#x4E0B;&#x6240;&#x793A;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">func</span> ResolveUDPAddr(net, addr <span class="hljs-keyword">string</span>) (*UDPAddr, os.Error)
<span class="hljs-keyword">func</span> DialUDP(net <span class="hljs-keyword">string</span>, laddr, raddr *UDPAddr) (c *UDPConn, err os.Error)
<span class="hljs-keyword">func</span> ListenUDP(net <span class="hljs-keyword">string</span>, laddr *UDPAddr) (c *UDPConn, err os.Error)
<span class="hljs-keyword">func</span> (c *UDPConn) ReadFromUDP(b []<span class="hljs-keyword">byte</span>) (n <span class="hljs-keyword">int</span>, addr *UDPAddr, err os.Error)
<span class="hljs-keyword">func</span> (c *UDPConn) WriteToUDP(b []<span class="hljs-keyword">byte</span>, addr *UDPAddr) (n <span class="hljs-keyword">int</span>, err os.Error)
</code></pre>
<p>&#x4E00;&#x4E2A;UDP&#x7684;&#x5BA2;&#x6237;&#x7AEF;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#x6240;&#x793A;,&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x5230;&#x4E0D;&#x540C;&#x7684;&#x5C31;&#x662F;TCP&#x6362;&#x6210;&#x4E86;UDP&#x800C;&#x5DF2;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">package</span> main

<span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;fmt&quot;</span>
    <span class="hljs-string">&quot;net&quot;</span>
    <span class="hljs-string">&quot;os&quot;</span>
)

<span class="hljs-keyword">func</span> main() {
    <span class="hljs-keyword">if</span> <span class="hljs-built_in">len</span>(os.Args) != <span class="hljs-number">2</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Usage: %s host:port&quot;</span>, os.Args[<span class="hljs-number">0</span>])
        os.Exit(<span class="hljs-number">1</span>)
    }
    service := os.Args[<span class="hljs-number">1</span>]
    udpAddr, err := net.ResolveUDPAddr(<span class="hljs-string">&quot;udp4&quot;</span>, service)
    checkError(err)
    conn, err := net.DialUDP(<span class="hljs-string">&quot;udp&quot;</span>, <span class="hljs-literal">nil</span>, udpAddr)
    checkError(err)
    _, err = conn.Write([]<span class="hljs-keyword">byte</span>(<span class="hljs-string">&quot;anything&quot;</span>))
    checkError(err)
    <span class="hljs-keyword">var</span> buf [<span class="hljs-number">512</span>]<span class="hljs-keyword">byte</span>
    n, err := conn.Read(buf[<span class="hljs-number">0</span>:])
    checkError(err)
    fmt.Println(<span class="hljs-keyword">string</span>(buf[<span class="hljs-number">0</span>:n]))
    os.Exit(<span class="hljs-number">0</span>)
}
<span class="hljs-keyword">func</span> checkError(err error) {
    <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Fatal error &quot;</span>, err.Error())
        os.Exit(<span class="hljs-number">1</span>)
    }
}
</code></pre>
<p>&#x6211;&#x4EEC;&#x6765;&#x770B;&#x4E00;&#x4E0B;UDP&#x670D;&#x52A1;&#x5668;&#x7AEF;&#x5982;&#x4F55;&#x6765;&#x5904;&#x7406;&#xFF1A;</p>
<pre><code class="lang-Go">
<span class="hljs-keyword">package</span> main

<span class="hljs-keyword">import</span> (
    <span class="hljs-string">&quot;fmt&quot;</span>
    <span class="hljs-string">&quot;net&quot;</span>
    <span class="hljs-string">&quot;os&quot;</span>
    <span class="hljs-string">&quot;time&quot;</span>
)

<span class="hljs-keyword">func</span> main() {
    service := <span class="hljs-string">&quot;:1200&quot;</span>
    udpAddr, err := net.ResolveUDPAddr(<span class="hljs-string">&quot;udp4&quot;</span>, service)
    checkError(err)
    conn, err := net.ListenUDP(<span class="hljs-string">&quot;udp&quot;</span>, udpAddr)
    checkError(err)
    <span class="hljs-keyword">for</span> {
        handleClient(conn)
    }
}
<span class="hljs-keyword">func</span> handleClient(conn *net.UDPConn) {
    <span class="hljs-keyword">var</span> buf [<span class="hljs-number">512</span>]<span class="hljs-keyword">byte</span>
    _, addr, err := conn.ReadFromUDP(buf[<span class="hljs-number">0</span>:])
    <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
        <span class="hljs-keyword">return</span>
    }
    daytime := time.Now().String()
    conn.WriteToUDP([]<span class="hljs-keyword">byte</span>(daytime), addr)
}
<span class="hljs-keyword">func</span> checkError(err error) {
    <span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
        fmt.Fprintf(os.Stderr, <span class="hljs-string">&quot;Fatal error &quot;</span>, err.Error())
        os.Exit(<span class="hljs-number">1</span>)
    }
}
</code></pre>
<h2 id="&#x603B;&#x7ED3;">&#x603B;&#x7ED3;</h2>
<p>&#x901A;&#x8FC7;&#x5BF9;TCP&#x548C;UDP Socket&#x7F16;&#x7A0B;&#x7684;&#x63CF;&#x8FF0;&#x548C;&#x5B9E;&#x73B0;&#xFF0C;&#x53EF;&#x89C1;Go&#x5DF2;&#x7ECF;&#x5B8C;&#x5907;&#x5730;&#x652F;&#x6301;&#x4E86;Socket&#x7F16;&#x7A0B;&#xFF0C;&#x800C;&#x4E14;&#x4F7F;&#x7528;&#x8D77;&#x6765;&#x76F8;&#x5F53;&#x7684;&#x65B9;&#x4FBF;&#xFF0C;Go&#x63D0;&#x4F9B;&#x4E86;&#x5F88;&#x591A;&#x51FD;&#x6570;&#xFF0C;&#x901A;&#x8FC7;&#x8FD9;&#x4E9B;&#x51FD;&#x6570;&#x53EF;&#x4EE5;&#x5F88;&#x5BB9;&#x6613;&#x5C31;&#x7F16;&#x5199;&#x51FA;&#x9AD8;&#x6027;&#x80FD;&#x7684;Socket&#x5E94;&#x7528;&#x3002;</p>
<h2 id="links">links</h2>
<ul>
<li><a href="preface.md">&#x76EE;&#x5F55;</a></li>
<li>&#x4E0A;&#x4E00;&#x8282;: <a href="08.0.html">Web&#x670D;&#x52A1;</a></li>
<li>&#x4E0B;&#x4E00;&#x8282;: <a href="08.2.html">WebSocket</a></li>
</ul>

                                
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